Add signed uri generator endpoint
Improve error messages
Remove active subscription check
Add comment to force build
Use AppIdentity signature
Make sure submitted batches contain task param
Use local Signed URI
Merge pull request #81 from Rise-Vision/fix/allow-download-without-subscription

Fix/allow download without subscription
Added intellij .idea folder to be ignored.
Added intellij .iml files to be ignored.
Implemented test for the add method of the DatastoreService
Implemented the add entity to the datastore through the objectify api.
Created a wrapper for accessing objectify instance it will also register the entity classes.
Added objectify and mockito dependencies.
Created TagDefinition Entity and started to write the test of the accessor
Implemented the storage.tagdef.put endpoint with unit tests to the accessor and the datastore service.
Added e2e test for create tag definition.
Added lower case assurance for name and values. Added objectify filter to web.xml. Changed values collection from set to list so a single item can be managed or retrived.
Implemented simple use case of storage.tagdef.get endpoint.
Fixed storage.tagdef.get endpoint issue and removed ignore annotation from test.