Reset button now resets entire game.

The 'reset' button now completely resets the game, in that it also moves all of the requirements from the selected window back to the requirements to select.
Fix 'remove game' buttons to be grayed out at the start of the game
Add comment for list of all requirements that is only used to reset the game when 'reset game' is pressed. The list is never changed after all the requirements are added to it.
Merge pull request #140 from sfmailand/reset-button

Add more reset button functionality
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It works, though it still needs to reset the calendar state.

Tested by: Alec Thompson - ajthompson
Merge branch 'sbl-dev' of git://github.com/struct-by-lightning/wpi-suite into sbl-dev

Conflicts:
	PlanningPoker/src/edu/wpi/cs/wpisuitetng/modules/PlanningPoker/view/NewGameTab.java