[chatsessionmodel] added sorting by role
[chatsessionmodel] added own priority
[chatsessionmodel] ver.3
Merge pull request #239 from trett/master

[chatsessionmodel] added sorting by role
Fixed recieving messages from another recources in MUC
Fixed MUC leaving after reconnection to server
Added user's avatar and senderName to conference notifications
Compile fixes and polishing for clang.
Merge pull request #242 from gorthauer/master

Compile fixes and polishing for clang.
[multimediabackend] ported to qt5 & added to build
Merge pull request #241 from trett/master

[multimediabackend] ported to qt5 & added to build
Fixed duplication of outgouing messages in MUCs
Added muc role icons and unknown-client icons
Nuvo
[adiumwebview] context menu for quote added
[adiumvebwiew] set focus on chatedit after requested context menu
Nuvo

add commented timestamp string
[adiumwebview] context menu for quote added
[adiumvebwiew] set focus on chatedit after requested context menu
[Nuvo] Delete qt4 legacy