Set version to 1.7.3-SNAPSHOT
Upgrade to OkHTTP 1.5.2
Upgrade to Volley 1.0.2
Upgrade to Volley 1.0.3
Issue #234: Address IllegalStateException errors in media player.

This wraps the media player in a try catch to handle IllegalStateExceptions
in the onKeyDown method.  If the player is in a illegal state we just pass
the key event on up the chain and don't handle it in the method.
Issue #233: Catch IllegalState Exceptions and log errors

There are times when the player may get into an illegal state, so catch
and log these times, but don't crash the app.
Issue #232: Fix possible issue that would cause an IllegalState with MenuDrawer

There was a static item for the menu drawer that shouldn't have been
static.
Release 1.7.3