Dropdown box for list table edit mode
Merge branch 'dev-iteration5' of github.com:gsisko/wpi-suite-tng into dev-iteration5

Conflicts:
	RequirementManager/src/edu/wpi/cs/wpisuitetng/modules/requirementmanager/list/views/ListView.java
	RequirementManager/src/edu/wpi/cs/wpisuitetng/modules/requirementmanager/list/views/RequirementListPanel.java