Add activity when creating or updating task
Change log message
Activity message include user
Merge branch 'develop' into feature-86-activity_log

Conflicts:
	TaskManager/src/main/java/edu/wpi/cs/wpisuitetng/modules/taskmanager/models/Task.java
	TaskManager/src/main/java/edu/wpi/cs/wpisuitetng/modules/taskmanager/view/tasks/ViewTaskPanel.java
Create test
Fix merge conflicts with feature-86-activity_log.