Starts implementation of email notifications

Email sending functionality completed, still need to poll users from server. Currently, this will not run correctly.

Authors: nfbrown, dcwethern, ellychou
Merge branch 'team9dev' into feature-emailnotification
Changes request for getting users

Changes request to make the request for "core/user" instead of "core/coreuser"

Author: nfbrown
Merge branch 'team9dev' into feature-emailnotification
Cleans up EmailController and sets the default message body.

The default message body is set to the username of the game creator and a quick message saying that a game has begun.

Authors: nfbrown, dcwethern, ellychou
Merge branch 'team9dev' into feature-emailnotification
Merge branch 'team9dev' into feature-emailnotification
Adds comments for EmailController and UserRequestObserver

Authors: nfbrown, dcwethern, ellychou
Merge branch 'team9dev' into feature-emailnotification
Sets up email notification to be sent upon saving game

Adds new functionality to the game save button when creating a game so that email notifications are sent when the game is created.

Author: nfbrown
Merge branch 'team9dev' into feature-emailnotification

Conflicts:
	PlanningPoker/src/edu/wpi/cs/wpisuitetng/modules/planningpoker/controller/ViewController.java
Sets emails to be sent when new game is saved.

Does not currently work, but works in testing. Still debugging. Making this commit so that new team9dev changes can be merged in.

Author: nfbrown
Merge branch 'team9dev' into feature-emailnotification
Merge branch 'team9dev' into feature-emailnotification
Merge remote-tracking branch 'origin/feature-emailnotification' into endGame
Updates the constructors for GameModel

Added the userList variable to the constructor
kpmartin
Deletes the estimates variable

Forgot to delete this when it was moved to GameRequirementModel
kpmartin
Fixes the constructor

View Controller was made before the userList was added, added it to the
constructor call
kpmartin
Fixes the constructor

Same as the last one
kpmartin