refactor(build): completely remove builds/, generate it all

- move everything from builds/ to source/meta/
- move .bat and .exe files to project root
- in gulpfile.js compile *.template.* files as Lo-Dash templates
- do not copy *.ignore.* files
- add copyright notice to *.js files

Also:
- turn chromium locale files into templates
- remove "appName" from them as it is not used
- rename builds/ to build/
- ignore build/

This closes #54, closes #55, and is related to #52 and #43.