Updated service fragment, caching options and also refactored some code.
Updated to version 0.5.
Merge branch 'develop'
Merge branch 'master' into release-support

Conflicts:
	library/src/instrumentTest/java/com/wit/android/support/service/fragment/AsyncServiceFragmentTest.java
	library/src/instrumentTest/java/com/wit/android/support/service/fragment/ServiceFragmentTest.java