Merge pull request #4 from special/master

[qmlmessages] Set TelepathyChannelManager handlerName
qt4 -> qt5
[qmlmessages] Fix packaging
[qmlmessages] Don't use QtSvg.

We don't require it.
[qmlmessages] Remove TelepathyQt registration

Telepathy is not used directly from this code. nemo-qml-plugin-messages
registers telepathy types itself when loaded.