robustify port checking
robustify port checking

mcfletch/AutobahnPython,D3f0/AutobahnPython,rapyuta/autobahn_rce,flyser/AutobahnPython,claws/AutobahnPython,tavendo/AutobahnPython,tomwire/AutobahnPython,flyser/AutobahnPython,flyser/AutobahnPython,iffy/AutobahnPython,rapyuta/autobahn_rce,iffy/AutobahnPython,crossbario/autobahn-python,dash-dash/AutobahnPython,iffy/AutobahnPython,magnux/AutobahnPython,crossbario/autobahn-python,ewollesen/AutobahnPython,bencharb/AutobahnPython,cachedout/AutobahnPython,magnux/AutobahnPython,inirudebwoy/AutobahnPython,rapyuta/autobahn_rce,claws/AutobahnPython,oberstet/autobahn-python,boonedox/AutobahnPython,oberstet/autobahn-python,leedm777/AutobahnPython,dash-dash/AutobahnPython,ttimon7/AutobahnPython,crossbario/autobahn-python,D3f0/AutobahnPython,oberstet/autobahn-python,Jenselme/AutobahnPython,meejah/AutobahnPython,iffy/AutobahnPython,luhn/AutobahnPython,Geoion/AutobahnPython,RyanHope/AutobahnPython,D3f0/AutobahnPython,wrapp/AutobahnPython,boonedox/AutobahnPython,schoonc/AutobahnPython,markope/AutobahnPython,wrapp/AutobahnPython,leedm777/AutobahnPython,rapyuta/autobahn_rce,cachedout/AutobahnPython,dash-dash/AutobahnPython,hzruandd/AutobahnPython,ewollesen/AutobahnPython,leedm777/AutobahnPython,jvdm/AutobahnPython,nucular/AutobahnPython,dash-dash/AutobahnPython,boonedox/AutobahnPython,wrapp/AutobahnPython,mcfletch/AutobahnPython