Added PropertyChangeListener to SidePanels. #29
Added casting i PropertyChangeListener method. #29
modified .gitignore
Added methods to CalendarControl
Added updateAppointment method in interface, class
update group
Made methods static
Merge pull request #32 from chunfantasy/calendar-control

Calendar control
Merge pull request #35 from chunfantasy/PersonControl,GroupControl

PersonControl,GroupControl
Merge branch 'master' into SidePanels
Updated propertyChange method. #29
update and get appointment
Merge pull request #36 from chunfantasy/SidePanels

SidePanels
update and get appointment
Merge branch 'master' of github.com:chunfantasy/calender into storage
merge from storage
Merge remote-tracking branch 'origin/master'

Conflicts:
	src/no/ntnu/pu/control/CalenderControl.java
	src/no/ntnu/pu/gui/view/MainView.java
	src/no/ntnu/pu/gui/view/SidePanel.java
	src/no/ntnu/pu/model/Appointment.java
	src/no/ntnu/pu/model/Person.java
Removed unused import.
test
fix merge bugs