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Rearrange code
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Store a card's value in its GUI text field
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Reimplement the method getting values from a deck
Refactor the code
Modify the method getting card's value

Change check null string to check empty string
Merge remote-tracking branch 'origin/dev-fixCreateSessionWithExistingDeck' into dev

Conflicts:
	PlanningPoker/src/edu/wpi/cs/wpisuitetcw/modules/planningpoker/view/pokers/Card.java
	PlanningPoker/src/edu/wpi/cs/wpisuitetcw/modules/planningpoker/view/pokers/CreateDeckPanel.java
	PlanningPoker/src/edu/wpi/cs/wpisuitetcw/modules/planningpoker/view/session/CreateSessionPanel.java