Conversion tool to generating several file formats

Current version

Formula history

Dominyk Tiller various: update remaining googlecode URLs
Domingo Moronta txt2tags: remove space from test block (#3804)
Xu Cheng txt2tags: bottle unneeded
Nikolaus Wittenstein Add descriptions to all remaining homebrew packages
Xu Cheng txt2tags: modernize and add test
Ian Lancaster Batch convert http urls from Google Code to https