removed commented out code. slightly expanded width of text label
position tableview at bottom when messages load so most recent message shows first
shift tableview up when keyboard shows on screen
make sure there is a valid message before sending it.
set title label color for send button to blue
adjusted height calculation of label to factor in padding
added gray border to message entry text view
implemented delegate method for previous controller to update when a new message is posted
update recent messages table when a new message is posted from thread view controller