Add tests for TaskEntityManager

TaskEntityManager now has ~85% code coverage. The missing methods are
the advanced HTTP requests, which are not implemented.
Merge branch 'develop' into junit-testing
Add tests for models
Add tests for TaskStatusEntityManager

Code coverage for TaskStatusEntityManager is 97%. The missing methods are the
advanced HTTP requests, which are not implemented.

Note: TaskStatusEntityManager retrieves WorkFlows from the database. This might
be correct, but should be looked into.
Add more tests for Task and TS and WF
Add tests for models and attributes
Add tests for AddTaskController

Minor changes:
 - automatic reformat of TaskStatusTest
Test taskinfopanels
Test WorkFlowView
remove taskStatusType and unused settingssplittabbedpabel
Merge pull request #105 from R2-Team2/feature-137-statustype

Feature 137 remove statustype
Fix date validation
Merge branch 'develop' into junit-testing

Conflicts:
	TaskManager/src/main/java/edu/wpi/cs/wpisuitetng/modules/taskmanager/view/tasks/AbstractInformationPanel.java
	TaskManager/src/main/java/edu/wpi/cs/wpisuitetng/modules/taskmanager/view/tasks/EditTaskInformationPanel.java
	TaskManager/src/main/java/edu/wpi/cs/wpisuitetng/modules/taskmanager/view/tasks/NewTaskInformationPanel.java
	TaskManager/src/main/java/edu/wpi/cs/wpisuitetng/modules/taskmanager/view/tasks/ViewTaskInformationPanel.java
	TaskManager/src/test/java/edu/wpi/cs/wpisuitetng/modules/taskmanager/view/tasks/AbstractInformationPanelTest.java
Merge pull request #107 from R2-Team2/quickfix_dates

Fix date validation
remove unused TaskEntityManager in models
Merge pull request #108 from R2-Team2/junit-testing

Junit testing
Merge branch 'develop' into bugfix-105-migrate_requirement_storage_to_id

Deleted the TaskEntityManager.java in models, according to develop.

Conflicts:
	TaskManager/src/main/java/edu/wpi/cs/wpisuitetng/modules/taskmanager/models/TaskEntityManager.java
	TaskManager/src/test/java/edu/wpi/cs/wpisuitetng/modules/taskmanager/models/TaskTest.java