introducing common/helpers.py where get_uf_status lives [more functions to come there in the future]

so no need to embrace every "send" call in try: except: block

suse is lsb compliant, but doesnot put lsb_release by default until 9.3 so readding scanning for suse file [now it is tested too]

SUSE uses lsb_release for quite a lot of versions I've been told so depend only on lsb for SuSE [the files things was untested in SUSE anyways]

set self.connected to 0 before dispatching the status to the GUI so the connectiing icon should disapear if connection failed