Make make docs work.

This means you can run:
$ make html_docs
or
$ make docs
to generate the html (+qch) files.

The docs get generated in qtbase/doc/enginio-qt.
Alternatively run qdoc on doc/enginio-qt.qdocconf directly.
Use the Qt look for the docs, otherwise they look just broken.
Fix sorting query parameter.

Now it should work (TM)
Remove unneeded check for the module pri
that might cause a build failure with a
developer build of Qt if an older version
of the build is still around.

This case should be covered by qtHaveModule(enginio).
Merge pull request #57 from bbandix/dev

Remove unneeded check for the module pri
Merge pull request #56 from nierob/fixSorting

Fix sorting query parameter.
Documentation update
Mark old docs as internal for now
Add docs, getting started C++
Say hello to QML tests

Add first QML tests for ObjectOperation CRUD functionality
Merge pull request #60 from bbandix/dev

Say hello to QML tests
Add QML docs
Merge pull request #59 from gladhorn/documentation

Documentation
Fix a signal & slot connection.

The slot is defined on the EnginioClient not on the EnginioClientPrivate
Remove a redundant inheritance from QObject.

EnginioClientPrivate doesn't need to be a QObject
Fix a memory leak in QML

The EnginioQmlReply needs to be deleted at some point. normally we would
connect finished signal to delete later slot, but the last one is not
accessible from QML and it would not be nice to force qml users to do
such low level operations. So for each EnginioQmlReply, on finished
signal, we transfer ownership from EnginioClient to JS environment.