-Fixed issues with shifts appearing in the wrong dates
-Replace the new shift activity with a dialog instead
-Use Calendar objects instead of Date objects in the Home Activity
-Use sensor portrait for all activities
-Added ability to long click on date to edit/input shift from that date onwards.
-Made the calendar show a full year, with the current month being in the middle
-Modified the shift input activity to restore shifts that has been inserted.
-New Icon!
-Added new colours for shifts
-Use the time picker dialog for time input
-Added ability to delete Shift
-Fixed a bug where editing shifts would save a new copy
-Refresh the listview correctly
Updated .gitignore file