nwg-hello 0.1.9

Added the "template-name" config key, to allow use of own templates.

• Find the built-in /usr/lib/python3.xx/site-packages/nwg_hello-x.y.z-py3.xx.egg/nwg_hello/template.glade file;
• copy it to a folder somewhere in ~/, edit and place as /etc/nwg-hello/file-name.glade;
• set your file-name.glade as the "template-name" value. Leave blank to use the built-in template.

Remember not to change original widget IDs in the template.