 Fix handling of receive of close frame in corner case - fixes #283
 Fix handling of receive of close frame in corner case - fixes #283

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