Some code cleanup on the updates that were made to LoginActivity and NewAccountActivity
Added SharedPreferences for managing user session in Login, New Account, and Ride Feed. In the Ride Feed, it will now show the posts for the logged in user
Quick little changes
Merge branch 'master' of https://github.com/lphk92/KShare

Conflicts:
	src/dkl/kshare/LoginActivity.java
	src/dkl/kshare/MyPostsActivity.java
	src/dkl/kshare/RideFeedActivity.java