Merge pull request #5 from n-gorbunov/master

Added message sending with additional params
Merge pull request #6 from n-gorbunov/master

Client presence issues
Merge pull request #7 from n-gorbunov/master

Added error code to QmlQXmppClient::error() signal
Merge pull request #8 from n-gorbunov/master

Added version.h
Merge pull request #9 from n-gorbunov/master

Edited vc project properties
Merge pull request #10 from n-gorbunov/master

Changed QmlQXmppClient::error() signal parameter: QXmppClient::Error -> ...
Merge pull request #11 from n-gorbunov/master

Fixed signal QmlQXmppClient::error()
Merge pull request #12 from n-gorbunov/master

Added support for XEP-0012
Change parent QmpQXmppClient to QDeclarativeItem