Initial commit
Import Communi for Sailfish prototype
Use Qt.application.name/version in AboutDialog and as part/quit reason
Implement #5: ZNC buffer playback
ChatPage: use Theme.primary/secondaryColor for messages

The secondary color is still a bit dark in the default theme,
but it's already much better than a hard-coded gray color. :)

Ref #10: Indication for already read messages
Update libcommuni submodule

Brings IrcConnection::channelKeyRequired() [signal] available
communi.desktop: rename to "IRC"
Add a bunch of commands

TODO: "custom" client-side commands such as /clear & /query
ie. commands that are not sent to the server.
Add MessageModel::setBadge() & setActiveHighlight()
Add MessageModel::clear()
Add MessageModel::count
ChatPage: add a menu item to clear the view
Add BufferProxyModel::models()
Kill confusing and unused BufferProxyModel::count
BufferProxyModel: auto-remove connections when server buffer is closed
Implement "Open a query"
Add a bunch of missing qsTr()'s
BufferDelegate: instantiate BusyIndicator only for server buffers
BufferDelegate: use Theme.secondaryColor for inactive buffers
Implement "custom" client-side commands: /clear, /close, /msg & /query