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.
Displays a message next to the 'Create Game' button if the session name field is left blank
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>
Merge pull request #87 from sfmailand/live-error-message

Displays a message next to the 'Create Game' button if the session name ...
Merge pull request #92 from eVulmaNn/sbl-dev

Changes all of the non-functional and past date buttons to disabled
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
Merge pull request #94 from friscis/sbl-dev

Hotfix for errors on calendar array
Change PlanningPokerGame model to store requirement IDs instead of Requirement objects

Authors: bbiletch, rbkillea, mamora
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