Game can no longer be created with a start date in the past

The system now checks whether the start date is in the past when the 'Create Game' button is pressed.
Header: Make warning about closing the tab pop up only if user edited the tab

Reported-by: bnurbekov, lhnguyenduc
Signed-off-by: Batyrlan Nurbekov <bnurbekov@wpi.edu>, Long Nguyen Duc
Hoang <lhnguyenduc@wpi.edu>
Add a reset button next to the create game button in the new game window that resets the values of the dates and session names to the default values

sfmailand
Removes the Start Date Calendar
Fixed merge conflict in NewGameTab.java
Commited by: Alec Thompson - ajthompson
Merge pull request #95 from hlong290494/clear-button

Add a reset button next to the create game button in the new game window...
Checked out by Ben Korza
bnkorza
Fixed merge conflict with NewGameTab.java
Commited by: Alec Thompson - ajthompson
Merge pull request #96 from bbiletch/sbl-dev

Change PlanningPokerGame model to store requirement IDs instead of Requirement objects
Checked out by Ben Korza
benkorza
Adds comments to ClosableTabComponent and NewGameTab
labatbouta, cgwalker
Header: Adds the new image for the card deck

Replaces the image used for the card deck so that it matches the
background.

Reported-by: bnurbekov, mamora
Signed-off-by: Batyrlan Nurbekov <bnurbekov@wpi.edu>, Miguel Mora
<mamora@wpi.edu>
Merge branch 'sbl-dev' of https://github.com/struct-by-lightning/wpi-suite into sbl-dev

Conflicts:
	PlanningPoker/src/edu/wpi/cs/wpisuitetng/modules/PlanningPoker/view/NewGameTab.java
Merge pull request #98 from bnurbekov/sbl-dev

Header: Adds the new image for the card deck
Fixes the layout of start date to use up space
Changed tree names to 'New', 'Open', 'Closed' to make it more clear what is what

Contributors: bnurbekov, mamora, sfmailand
Merge branch 'sbl-dev' of git://github.com/struct-by-lightning/wpi-suite into sbl-dev
Merge remote-tracking branch 'origin/sbl-dev' into sbl-dev

Conflicts:
	PlanningPoker/src/edu/wpi/cs/wpisuitetng/modules/PlanningPoker/view/NewGameTab.java
Merge pull request #100 from swconley/sbl-dev

Commented ClosableTabComponent and NewGameTab
Checked out by Ben Korza
benkorza
Header: Makes the "Modify game button" disabled by default

Reported-by: bnurbekov, mamora
Signed-off-by: Batyrlan Nurbekov <bnurbekov@wpi.edu>, Miguel Mora
<mamora@wpi.edu>
Commented the DatePicker class as it had no comments.
Merge pull request #103 from bnurbekov/sbl-dev

Header: Makes the "Modify game button" disabled by default