Added RecurrentTask in the ProjectCommitActivity - attempt to use the
commit date
Some fixes and test.
Added notification. Works for master(?)
Is now functional. Will send user a notification when master branch is
updated.
Merge branch 'NewCommitsNotification'

Conflicts:
	res/values/strings.xml
	src/se/chalmers/group4/codenavigator/MainActivity.java
	src/se/chalmers/group4/codenavigator/ProjectListActivity.java