0.0.7

basemaps 0.0.7

Minor improvements

Changes:

• maps rendered using basemap_ggplot or basemap_gglayer or objects plotted using gg_raster are now displayed with all pixels by default (full resolution, maxpixels argument) instead of rendering in a lower resolution (previous default: 500000).
• switched from using aes_string to aes in gg_raster due to deprectation of the function in ggplot2.