Empty UploadMediaIntentBuilder added.
UploadMediaIntentBuilder implementation added.
Merge branch 'dev' into upload_intent

Conflicts:
	sitecore-api-android/src/main/java/net/sitecore/android/sdk/api/ScApiSession.java
	sitecore-api-android/src/main/java/net/sitecore/android/sdk/api/ScApiSessionImpl.java
Merge fixed.
Removed old uploadMedia() logic
UploadMediaPlugin fixed
Reduced scope of UploadMediaRequestOptions
Merge pull request #21 from Sitecore/upload_intent

Upload Media refactored.