1.7.3.0 - 6/30/2014 - Much needed fixes and improvements

/ When renaming a Supported Game it will properly change the name in the
list (thanks to Darren)
/ Fixed issues when no data is present, in turn fixes
NullReferenceException on exit (thanks to Darren)
/ Fixed issues when looking at sessions or info of a game that has
"Never" been played (thanks to Darren)
/ Fixed Weekly Averages crash when game has "Never" been played (thanks
to Darren)
/ Fixed issues when adding a Supported Game while open and then closing
the game (thanks to Darren)
/ Fixed Calendar not showing current month upon opening (thanks to
Darren)
/ Fixed CPU and MEM usage not being tracked
/ Fixed crash when trying to view sessions when there are none
/ Fixed crash after finishing first session of a game
/ Will properly Start Hidden now
/ Medium logic improvements and UI changes