clear naming and category detail initial checkin

Able to retrieve cloud end point but not able to display in the details
view which has a list element defined in layou
Category details view barebones using parse cloud end poitns
university details

updated categtorylist to pass both name and short name to category
detail activity
ellipsis functionality
Fixed bug where the app crashes

if there are no courses associated with the university (or) category
Facebook login through menu is now functional.
cleanup
Adding authentication checks for up vote and down vote actions
Merge branch 'facebook' into ViewPager
Merge branch 'ViewPager' into cucumber