removed unused variable
since we use inputstreams we don't have to write the binary files step by step any longer
updating mediaelementjs
Merge branch 'develop'
moving RequestHandler to own package
use a request handler for binary files since session handling got more complex in Vaadin 7.1 and we can't be sure that the session is correct
stabilize binary resource handling by always closing the entity stream when the browser cancels the original request
actually call "pause"
don't ignore metadata constraint values
Merge pull request #257 from korpling/release/3.1.0-alpha

port fixes from the release/3.1.0 alpha branch