correct close handling on 2nd proto violation
correct close handling on 2nd proto violation

schoonc/AutobahnPython,oberstet/autobahn-python,dash-dash/AutobahnPython,iffy/AutobahnPython,tavendo/AutobahnPython,Jenselme/AutobahnPython,luhn/AutobahnPython,RyanHope/AutobahnPython,mcfletch/AutobahnPython,claws/AutobahnPython,meejah/AutobahnPython,claws/AutobahnPython,crossbario/autobahn-python,oberstet/autobahn-python,nucular/AutobahnPython,iffy/AutobahnPython,Geoion/AutobahnPython,mcfletch/AutobahnPython,crossbario/autobahn-python,inirudebwoy/AutobahnPython,bencharb/AutobahnPython,ttimon7/AutobahnPython,dash-dash/AutobahnPython,dash-dash/AutobahnPython,jvdm/AutobahnPython,dash-dash/AutobahnPython,hzruandd/AutobahnPython,crossbario/autobahn-python,tomwire/AutobahnPython,iffy/AutobahnPython,markope/AutobahnPython,iffy/AutobahnPython,oberstet/autobahn-python