Set icons for tasks based on due date, started date and current date
Change-Id: Ie155c5e0ab9cf76496068fc83090f2d670699e87
update with new icons and added legend for icons

Change-Id: I310ed3b0d862a94eff10a0fc5dea1aef1542dc7c
Merge branch 'dev' of https://github.com/Acstylos/wpi-suite into features/icons4

Conflicts:
	TaskManager/src/main/java/edu/wpi/cs/wpisuitetng/modules/taskmanager/model/TaskModel.java
	TaskManager/src/main/java/edu/wpi/cs/wpisuitetng/modules/taskmanager/presenter/TaskPresenter.java
	TaskManager/src/main/java/edu/wpi/cs/wpisuitetng/modules/taskmanager/view/MiniTaskView.java

Change-Id: Id4b9b7d9341bd311405a3de5fa1f4634f837323c
- Merge branch featue/icons  into dev
- Fix a bug in icons.java
Change-Id: Ibafef9c712cb28c5d246280f56d266b6c7cb4043