Merge pull request #89 from DougKong/master

setup development and production environment variables
added RAF styling for type filtering, and a selected class for each option
removed unnecessary name, and added selectedCategory variable to know which one should have the selected class.
refactored html to look nicer, and added ng-class to get selected class happening
Merge pull request #90 from bwest87/master

added in type filtering and associated styles
Merge branch 'master' of https://github.com/ReadUpCode/readup