Experimental disk Cache implementation
in progress commit
Merge branch 'development' of https://github.com/appglu/appglu-androidsdk.git into cache
FileCache implementation
Cache test cases
Changes on Java Client to return the headers as well when downloading a
file, not just the input stream body
Changing StorageApi to use new cache implementation
Integration of Sync and Storage apis
Merge branch 'development' into cache

Conflicts:
	appglu-android-sample/src/main/java/com/appglu/android/sample/ProductListAdapter.java
Updating version to 1.1.0
Merge branch 'development' of https://github.com/appglu/appglu-androidsdk.git into cache
Merge branch 'development' into cache
Updating sample to 1.1.0 SDK version
Merge pull request #63 from appglu/cache

Unification of Sync and Storage APIs for file downloads