Fix rotated logic in EnginioQmlClient::isAuthenticated
Remvoe wrong assert
Rename isObject to isComposedType in ValueAdaptor

The new name better describe the implementation especially of QJSValue
specialization in which an array is also an object.
Fix a copy & paste bug in sort parameter detection.

Still one bug remains, currently only one sorting condition can
be added.
Merge pull request #55 from nierob/fixesAfterDemo

Fixes after demo