mention menuitem by name [so refactoring does not break code]; fix sensitivy of history to be disabled for transports

msg window alignment is back now with corrected top padding so tab does not touch the window wm titlebar

do not play sound on recv chatstates. also comment on this so at last that code is somehow readable. thx Jim for report

chatstates handling is back again. now with comment why this should stay where it is. also do and if-if a if-elif [thanks Jim for this]

helpers that do not relate with xmpp, belong to helpers.py not to common/gajim.py. if they have gtk they belong to gtkgui_helpers. also use those allover

fix a nice thought of travis to work ok with talkig to 2 or more resources the same time [do not show account name then]

that connection is already established

established

show gajim.png image instead of STOCK_APPLY image cause in many theme (gnome one) it's too small and it looks ugly

handle correctly when server return answer to register request when we create a new account. Fixes #1725