Made the width of the time field wider
Merge pull request #25 from TheTeam8s/feature-fixComboTimeWidth

Made the width of the time field wider
Change active drop down menus to white and make no end date a valid option
Fixed OvervieTable NullPointerException when trying to refresh table.
This occured when a planning poker session was created without an end
date.
Merge pull request #26 from TheTeam8s/feature-fixCreateGameGUIBugs

Change active drop down menus to white and make no end date a valid opti...
Added opening of a session for editing
Added changes from BetterNewGameTab to EditGameTab. These should be merged at somepoint with different constructors
Refactored BetterNewGameTab to align better with the ViewEventController methods and renamed to PlanningPokerSessionTab