Several more changes:
1)The most recent post is shown as a hint in the 'make post' field

2)Reduced some of the lag in switching between fragments. There's still some lag, but not as bad

3)Users can choose profile pics by clicking on the current profile pic. This pulls up the gallery on the phone.
  --Known error: pictures chosen from external places (Dropbox, Picasso, etc.) cause the app to crash.