Added setters and getters to DetailPanel.java after moving CancelAction.java, EditRequirementAction.java, and SaveRequirementAction.java to actions package.  Also documented DetailPanel.java and MainView.java.
Merge branch 'dev-set3-detview' of https://github.com/333fred/wpi-suite-tng into dev-set3-detview

Conflicts:
	RequirementsManager/src/edu/wpi/cs/wpisuitetng/modules/requirementsmanager/view/DetailPanel.java
	RequirementsManager/src/edu/wpi/cs/wpisuitetng/modules/requirementsmanager/view/actions/EditRequirementAction.java
	RequirementsManager/src/edu/wpi/cs/wpisuitetng/modules/requirementsmanager/view/actions/SaveRequirementAction.java

Resolved conflicts and added comments to RetrieveAllIterationsRequestObserver.java and RetrieveIterationsController.java
Merge branch 'dev-set3-detview' of https://github.com/333fred/wpi-suite-tng into dev-set3-detview