Generate the headers entity for Delete/Head/Options and update tests
Merge branch '475_Rest_Authentication' into 475_Add_Missing_Rest_Authentication
Merge branch 'develop' into dhleong-475_Add_Missing_Rest_Authentication

Conflicts:
	AndroidAnnotations/androidannotations/src/main/java/org/androidannotations/processing/rest/DeleteProcessor.java
Fix unit tests. Add some cases in MyService class
Rename GetPostProcessor as MethodCrudPRocessor
Minor refacto
Refactor unit test for Rest services.
Merge branch 'dhleong-475_Add_Missing_Rest_Authentication' into develop