add chat feature (issue #30)
    
      * removed 32bit build and all packaging from travis
      * packaging migrated to openSUSE Build Service
      * added openSUSE Build Service support files
      * deleted fpm and packagecloud helper scripts
      * added correct md5sum to PKGBUILD
      * added IrcClient wrapper class and Chat , ChatList , ChatListItem GUI classes
      * added AvCaster::Irc static instance of libircclient wrapper
      * added AvCaster::AddChatLine() , AvCaster::SendChat() , AvCaster::GetVersionString() ,
              AvCaster::UpdateChatNicks() , AvCaster::GetChatNicks()
      * moved AvCaster::SetConfig() to AvCasterStore->setConfig()
      * renamed AvCaster::GuiChanged() to AvCaster::SetConfig()
      * removed AvCasterStore->devicesNames()
      * added AvCasterStore->chatters store and MainContent->initialize() for chatters_store
      * removed Gstreamer::WindowHandle in favor of AvCaster::GetGuiXwinHandle()
      * added Gstreamer::GetVersionMajor(), Gstreamer::GetVersionMinor() , Gstreamer::IsSufficientVersion()
      * split AvCaster::HandleCliParams() into AvCaster::HandleCliParamsPreInit(), AvCaster::HandleCliParamsPostInit()
      * added PresetSeed->isAudioOn (and friends - no GUI support)