Work on teammate info vc

Pressing start in the start game vc pushes the teammate info vc, which
currently contains a table view with each teammate's most played champ
based on their 30 most recent matches.

FIXME: Crash occurs if all four teammates are entered at once in the
start game vc.
Fix for start game vc/teammate info vc crash

Annoying NSMutableArray initialization problems.
Sign out bug fix and start game vc tweak

Upon signing out, the sign in view must be user interactable. In the
start game vc, if a summoner name is already in the text field and it is
edited and entered again, do not fetch the same matches again.
Merge branch 'chris' into dennis