[ImgBot] Optimize images

*Total -- 26,459.14kb -> 23,696.72kb (10.44%)

/tags/demo_icon.gif -- 3.88kb -> 0.34kb (91.32%)
/cert/icon_paypal.gif -- 6.97kb -> 0.89kb (87.28%)
/images/stop.gif -- 0.96kb -> 0.17kb (82.47%)
/graphics/angry.gif -- 0.99kb -> 0.21kb (78.3%)
/css/smiley.gif -- 1.03kb -> 0.25kb (75.93%)
/js/smiley.gif -- 1.03kb -> 0.25kb (75.93%)
/jsref/smiley.gif -- 1.03kb -> 0.25kb (75.93%)
/asp/smiley.gif -- 1.03kb -> 0.25kb (75.93%)
/cssref/smiley.gif -- 1.03kb -> 0.25kb (75.93%)
/graphics/smiley.gif -- 1.03kb -> 0.25kb (75.93%)
/r/r_plot_simple.png -- 2.60kb -> 0.69kb (73.51%)
/r/r_scatterplot.png -- 3.01kb -> 0.82kb (72.81%)
/r/plot.png -- 2.72kb -> 0.76kb (72.15%)
/r/r_plot1.png -- 2.79kb -> 0.78kb (71.89%)
/r/r_plot_cex.png -- 2.98kb -> 0.86kb (70.96%)
/r/r_plot2.png -- 2.87kb -> 0.85kb (70.38%)
/r/r_plot_labels.png -- 3.03kb -> 0.91kb (69.97%)
/xml/pic_rss.gif -- 1.01kb -> 0.31kb (69.69%)
/r/r_scatterplot_car.png -- 3.52kb -> 1.08kb (69.18%)
/r/r_plot_dotted.png -- 3.07kb -> 0.95kb (69%)
/r/r_plot_pch.png -- 2.99kb -> 0.93kb (68.94%)
/r/r_bar_col.png -- 2.26kb -> 0.71kb (68.77%)
/r/r_plot_col.png -- 2.74kb -> 0.91kb (66.94%)
/python/img_ml_decision_tree.png -- 30.14kb -> 11.27kb (62.6%)
/r/r_plot_line.png -- 3.49kb -> 1.33kb (61.82%)
/python/pareto1.png -- 10.72kb -> 4.14kb (61.39%)
/python/img_matplotlib_scatter_color.png -- 12.24kb -> 4.78kb (60.94%)
/python/img_matplotlib_scatter_compare.png -- 12.46kb -> 5.03kb (59.67%)
/python/img_matplotlib_scatter.png -- 10.82kb -> 4.39kb (59.39%)
/datascience/img_data_cleaned.png -- 13.08kb -> 5.33kb (59.28%)
/r/r_scatterplot_car2.png -- 4.23kb -> 1.72kb (59.19%)
/python/img_numpy_normal.png -- 11.15kb -> 4.58kb (58.96%)
/python/img_matplotlib_fmt_k.png -- 7.24kb -> 3.02kb (58.33%)
/python/zipf1.png -- 9.86kb -> 4.21kb (57.34%)
/python/img_matplotlib_bar_x.png -- 11.17kb -> 4.78kb (57.24%)
/datascience/img_data_float.png -- 9.82kb -> 4.21kb (57.14%)
/r/r_bar_density.png -- 8.69kb -> 3.75kb (56.83%)
/python/img_traintest2.png -- 13.22kb -> 5.77kb (56.35%)
/python/img_traintest1.png -- 13.89kb -> 6.07kb (56.33%)
/datascience/img_data_raw.png -- 15.86kb -> 6.93kb (56.28%)
/python/img_traintest3.png -- 11.78kb -> 5.15kb (56.26%)
/python/img_matplotlib_ls_none.png -- 6.29kb -> 2.75kb (56.23%)
/python/img_matplotlib_fmt_w.png -- 6.29kb -> 2.75kb (56.23%)
/python/img_polynomial_scatter.png -- 9.67kb -> 4.27kb (55.83%)
/r/r_plot_l_width.png -- 3.55kb -> 1.57kb (55.7%)
/python/img_matplotlib_plot_o.png -- 7.68kb -> 3.42kb (55.5%)
/python/poisson1.png -- 9.15kb -> 4.09kb (55.26%)
/r/r_plot_l_color.png -- 3.53kb -> 1.58kb (55.15%)
/python/img_numpy_uniform3.png -- 7.04kb -> 3.16kb (55.04%)
/python/img_pandas_plot_hist.png -- 10.08kb -> 4.54kb (54.91%)
/r/r_plot_pch2.png -- 6.41kb -> 2.93kb (54.38%)
/python/bionomial1.png -- 8.25kb -> 3.87kb (53.11%)
/html/programming.gif -- 7.37kb -> 3.46kb (53.05%)
/jsref/hackanm.gif -- 7.37kb -> 3.46kb (53.05%)
/asp/w3s.gif -- 7.30kb -> 3.43kb (52.94%)
/datascience/img_data_float_object.png -- 9.92kb -> 4.73kb (52.31%)
/python/img_matplotlib_histogram1.png -- 8.03kb -> 3.85kb (52.13%)
/python/img_scatterplot.png -- 12.02kb -> 5.82kb (51.63%)
/jsref/border.png -- 1.99kb -> 0.96kb (51.62%)
/css/border.png -- 1.99kb -> 0.96kb (51.62%)
/cssref/border.png -- 1.99kb -> 0.96kb (51.62%)
/python/img_matplotlib_fmt_g.png -- 7.28kb -> 3.53kb (51.54%)
/python/img_matplotlib_fmt_y.png -- 7.25kb -> 3.53kb (51.36%)
/python/img_matplotlib_fmt_m.png -- 7.25kb -> 3.53kb (51.36%)
/python/img_matplotlib_fmt_c.png -- 7.25kb -> 3.53kb (51.35%)
/python/img_matplotlib_fmt_r.png -- 7.05kb -> 3.53kb (49.98%)
/python/img_matplotlib_fmt_b.png -- 7.05kb -> 3.53kb (49.97%)
/datascience/img_corr_matrix_table.png -- 16.63kb -> 8.34kb (49.86%)
/python/img_matplotlib_barh_height.png -- 5.72kb -> 2.90kb (49.26%)
/java/path3.png -- 12.28kb -> 6.25kb (49.15%)
/python/img_matplotlib_bars_red.png -- 6.05kb -> 3.12kb (48.36%)
/python/img_matplotlib_bars2.png -- 5.75kb -> 2.97kb (48.35%)
/r/r_pie_col.png -- 4.59kb -> 2.39kb (47.99%)
/python/img_matplotlib_bars_thin.png -- 5.87kb -> 3.10kb (47.18%)
/python/img_matplotlib_bars_hotpink.png -- 5.90kb -> 3.12kb (47.08%)
/r/r_pie_legend.png -- 5.04kb -> 2.67kb (47.06%)
/python/img_matplotlib_bars1.png -- 5.87kb -> 3.12kb (46.83%)
/python/img_matplotlib_bars_green.png -- 5.87kb -> 3.12kb (46.82%)
/r/r_pie_angle.png -- 4.57kb -> 2.43kb (46.77%)
/r/r_pie.png -- 4.46kb -> 2.39kb (46.53%)
/r/r_pie_label.png -- 4.80kb -> 2.59kb (46.07%)
/datascience/img_stat_describe.png -- 35.72kb -> 19.38kb (45.74%)
/r/r_plot_multi.png -- 3.97kb -> 2.17kb (45.36%)
/java/path2.png -- 16.22kb -> 8.94kb (44.87%)
/datascience/img_lr_table.png -- 113.33kb -> 63.65kb (43.84%)
/datascience/img_lr_table_info.png -- 113.32kb -> 63.64kb (43.84%)
/css/img_bg_eyeicon.png -- 3.11kb -> 1.77kb (43.05%)
/html/img_bg_eyeicon.png -- 3.11kb -> 1.77kb (43.05%)
/colors/img_bg_eyeicon.png -- 3.11kb -> 1.77kb (43.05%)
/howto/aspect_ratio.png -- 3.26kb -> 1.86kb (42.87%)
/datascience/img_stat_matrix.png -- 6.94kb -> 3.97kb (42.74%)
/datascience/img_stat_var.png -- 4.31kb -> 2.47kb (42.71%)
/r/r_bar.png -- 2.29kb -> 1.33kb (41.91%)
/r/r_bar_hor.png -- 2.33kb -> 1.36kb (41.73%)
/r/r_bar_width.png -- 2.30kb -> 1.35kb (41.54%)
/css/mqcap.jpg -- 22.28kb -> 13.14kb (41.05%)
/python/img_linear_regression.png -- 16.74kb -> 9.98kb (40.39%)
/datascience/img_stat_cv.png -- 4.98kb -> 2.98kb (40.09%)
/datascience/img_stat_var_full.png -- 5.44kb -> 3.26kb (39.98%)
/python/img_matplotlib_scatter_1000.png -- 34.63kb -> 21.09kb (39.09%)
/images/w3schoolscomlogo.png -- 3.67kb -> 2.23kb (39.08%)
/datascience/img_stat_std2.png -- 5.16kb -> 3.20kb (37.87%)
/w3images/la.jpg -- 17.34kb -> 10.98kb (36.72%)
/appml/img_aws_logo.png -- 6.02kb -> 3.86kb (35.94%)
/bootstrap4/la.jpg -- 14.38kb -> 9.51kb (33.87%)
/html/img_notepad.png -- 8.32kb -> 5.52kb (33.69%)
/whatis/img_github_delete.png -- 55.35kb -> 37.68kb (31.93%)
/python/img_pandas_plot_scatter2.png -- 16.93kb -> 11.60kb (31.47%)
/python/img_pandas_plot_scatter.png -- 18.25kb -> 12.55kb (31.24%)
/nodejs/img_rgb_led.png -- 4.51kb -> 3.10kb (31.21%)
/tags/w3s.png -- 27.45kb -> 18.94kb (30.99%)
/python/scipy_spatial_convexhull.png -- 25.41kb -> 17.61kb (30.7%)
/css/searchicon.png -- 0.84kb -> 0.58kb (30.47%)
/howto/searchicon.png -- 0.84kb -> 0.58kb (30.47%)
/jquery/img_travtree.png -- 6.17kb -> 4.31kb (30.15%)
/java/system1.png -- 13.55kb -> 9.49kb (29.98%)
/colors/img_microsoft.png -- 19.92kb -> 13.95kb (29.96%)
/tags/img_canvas_arcto.png -- 5.47kb -> 3.85kb (29.65%)
/whatis/img_github_logo.png -- 4.17kb -> 2.94kb (29.36%)
/python/img_matplotlib_fmt_dot.png -- 17.23kb -> 12.22kb (29.07%)
/images/w3schools.png -- 2.14kb -> 1.52kb (28.92%)
/python/img_matplotlib_line_dotted.png -- 16.73kb -> 11.96kb (28.51%)
/java/system.png -- 25.04kb -> 17.96kb (28.31%)
/python/img_linear_regression_badfit.png -- 10.82kb -> 7.78kb (28.11%)
/bootstrap/bs_templates2.jpg -- 33.40kb -> 24.05kb (27.98%)
/nodejs/img_resistor_68ohm.png -- 2.17kb -> 1.56kb (27.88%)
/python/img_matplotlib_subplots2.png -- 24.52kb -> 17.76kb (27.57%)
/python/img_matplotlib_fmt_dashdot.png -- 19.31kb -> 13.99kb (27.56%)
/python/img_polynomial_regression.png -- 20.87kb -> 15.13kb (27.51%)
/python/scipy_graph.png -- 5.56kb -> 4.04kb (27.33%)
/python/img_matplotlib_marker_o_20.png -- 21.96kb -> 15.99kb (27.2%)
/python/scipy_spatial_delaunay.png -- 31.01kb -> 22.58kb (27.18%)
/python/img_matplotlib_fmt_dash.png -- 19.24kb -> 14.03kb (27.09%)
/w3images/mac.jpg -- 28.49kb -> 20.81kb (26.97%)
/python/img_matplotlib_marker_o_mfc.png -- 23.27kb -> 17.00kb (26.96%)
/python/img_matplotlib_ls_dashdot.png -- 18.85kb -> 13.77kb (26.92%)
/ai/img_plot_linear.jpg -- 27.21kb -> 19.90kb (26.85%)
/python/img_traintest3_2.png -- 21.51kb -> 15.75kb (26.79%)
/asp/pic_chart1.jpg -- 18.89kb -> 13.85kb (26.69%)
/python/img_matplotlib_marker_o_hex.png -- 21.98kb -> 16.15kb (26.54%)
/python/img_matplotlib_line_dashed.png -- 18.77kb -> 13.81kb (26.43%)
/python/img_matplotlib1.png -- 14.84kb -> 10.93kb (26.33%)
/python/img_matplotlib_marker_o_mec.png -- 23.10kb -> 17.03kb (26.28%)
/python/img_matplotlib_plotting1.png -- 16.21kb -> 12.00kb (26.02%)
/python/img_matplotlib_pyplot.png -- 17.05kb -> 12.62kb (25.96%)
/python/img_matplotlib_pie1.png -- 12.83kb -> 9.52kb (25.84%)
/w3images/ny.jpg -- 20.63kb -> 15.31kb (25.8%)
/python/img_matplotlib_line_two.png -- 25.33kb -> 18.80kb (25.79%)
/python/img_polynomial_badfit.png -- 14.40kb -> 10.71kb (25.66%)
/python/img_matplotlib_marker_fmt1.png -- 15.24kb -> 11.33kb (25.66%)
/python/img_matplotlib_marker_thin_d.png -- 20.82kb -> 15.49kb (25.61%)
/python/img_matplotlib_line_lw.png -- 21.65kb -> 16.12kb (25.55%)
/python/img_matplotlib_marker_plus_filled.png -- 20.70kb -> 15.45kb (25.34%)
/python/img_matplotlib_marker_hotpink.png -- 21.33kb -> 15.94kb (25.28%)
/python/img_matplotlib_fmt_solid.png -- 20.65kb -> 15.44kb (25.23%)
/python/img_matplotlib_marker_o.png -- 20.65kb -> 15.44kb (25.23%)
/python/img_matplotlib_marker_H.png -- 20.68kb -> 15.46kb (25.23%)
/python/img_matplotlib_marker_x_filled.png -- 20.51kb -> 15.34kb (25.18%)
/python/img_matplotlib_marker_o_mec_mfc.png -- 21.43kb -> 16.04kb (25.15%)
/python/img_matplotlib_marker_x.png -- 20.57kb -> 15.40kb (25.13%)
/python/img_matplotlib_marker_D.png -- 20.37kb -> 15.25kb (25.12%)
/python/img_matplotlib_marker_triangle_left.png -- 20.58kb -> 15.43kb (25.01%)
/python/img_matplotlib_marker_plus.png -- 20.60kb -> 15.45kb (24.99%)
/python/img_matplotlib_marker_p.png -- 20.67kb -> 15.51kb (24.99%)
/python/img_matplotlib_line_hex.png -- 20.38kb -> 15.29kb (24.96%)
/python/img_matplotlib_marker_triangle_right.png -- 20.52kb -> 15.40kb (24.95%)
/python/img_matplotlib_marker_star.png -- 20.66kb -> 15.51kb (24.94%)
/python/img_matplotlib_marker_hline.png -- 20.48kb -> 15.38kb (24.91%)
/python/img_matplotlib_pie_explode.png -- 18.18kb -> 13.66kb (24.9%)
/python/img_matplotlib_pie_color.png -- 16.95kb -> 12.73kb (24.89%)
/python/img_matplotlib_marker_point.png -- 20.47kb -> 15.38kb (24.87%)
/python/img_matplotlib_marker_4.png -- 20.57kb -> 15.46kb (24.85%)
/python/img_matplotlib_marker_3.png -- 20.55kb -> 15.46kb (24.78%)
/python/img_matplotlib_marker_v.png -- 20.54kb -> 15.45kb (24.76%)
/python/img_matplotlib_marker_triangle_up.png -- 20.49kb -> 15.42kb (24.72%)
/python/img_matplotlib_marker_hexagon.png -- 20.57kb -> 15.49kb (24.7%)
/python/img_matplotlib_scatter_size.png -- 16.30kb -> 12.28kb (24.7%)
/python/img_matplotlib_marker_2.png -- 20.56kb -> 15.48kb (24.7%)
/python/img_matplotlib_marker_s.png -- 20.18kb -> 15.20kb (24.7%)
/python/img_matplotlib_marker_1.png -- 20.54kb -> 15.47kb (24.69%)
/python/img_matplotlib_marker_pixel.png -- 20.29kb -> 15.29kb (24.61%)
/python/img_matplotlib_ls_solid.png -- 20.29kb -> 15.30kb (24.6%)
/python/img_matplotlib_marker_vline.png -- 20.37kb -> 15.37kb (24.57%)
/datascience/img_linearity.png -- 31.21kb -> 23.56kb (24.52%)
/python/img_matplotlib_pie_labels.png -- 17.14kb -> 12.96kb (24.39%)
/w3css/img_responsive.png -- 67.00kb -> 50.72kb (24.3%)
/python/img_matplotlib_plotting2.png -- 19.36kb -> 14.66kb (24.3%)
/howto/passw_val.jpg -- 35.53kb -> 26.92kb (24.24%)
/python/img_matplotlib_pie_angle_90.png -- 17.33kb -> 13.13kb (24.22%)
/python/seaborn2.png -- 22.88kb -> 17.35kb (24.18%)
/python/img_matplotlib_pie_legend_title.png -- 22.07kb -> 16.76kb (24.07%)
/python/img_matplotlib_pie_legend.png -- 21.09kb -> 16.02kb (24.04%)
/cs/Consoleapp.png -- 45.16kb -> 34.45kb (23.72%)
/r/R_img.jpg -- 152.02kb -> 116.14kb (23.6%)
/ai/img_plot_houseprices1.jpg -- 56.47kb -> 43.32kb (23.27%)
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/python/img_matplotlib_subplots3.png -- 34.78kb -> 26.95kb (22.51%)
/whatis/img_npm.jpg -- 10.42kb -> 8.10kb (22.28%)
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/python/img_matplotlib_scatter_colors2.png -- 12.04kb -> 9.37kb (22.15%)
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/python/img_matplotlib_pie_shadow.png -- 23.88kb -> 18.82kb (21.16%)
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/python/uniform1.png -- 20.31kb -> 16.05kb (21.01%)
/python/img_matplotlib_grid_kwargs.png -- 31.19kb -> 24.65kb (20.96%)
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/ai/img_plot_houseprices3.jpg -- 37.40kb -> 29.68kb (20.63%)
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/ai/img_plot_houseprices3.png -- 20.36kb -> 16.21kb (20.36%)
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/python/img_matplotlib_plotting4.png -- 21.08kb -> 16.92kb (19.74%)
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/tags/planets.gif -- 4.13kb -> 3.45kb (16.3%)
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/datascience/img_stat_heatmap.png -- 33.95kb -> 28.45kb (16.19%)
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