[qmlchat] Added basic support for adium styles

It's currently totally broken because of my misunderstanding of
QtQuick 2's WebView, possibly it's a bugs or I use it wrongly
[Core] Added 'object' property to QuickConfig

It makes possible to create settings pages for accounts:
Config {
    object: controller
}
Fix qmlchat compilation
Merge pull request #305 from VladRassokhin/fix-qmlchat-compilation

Fix qmlchat compilation