Bump version to 1.5.5
Bump version to 1.5.5

Natim/sentry,percipient/raven-python,dirtycoder/opbeat_python,looker/sentry,rdio/sentry,llonchj/sentry,recht/raven-python,kevinlondon/sentry,ewdurbin/sentry,imankulov/sentry,drcapulet/sentry,Natim/sentry,Goldmund-Wyldebeast-Wunderliebe/raven-python,Photonomie/raven-python,argonemyth/sentry,smarkets/raven-python,JTCunning/sentry,JackDanger/sentry,jean/sentry,someonehan/raven-python,akalipetis/raven-python,NickPresta/sentry,looker/sentry,korealerts1/sentry,hzy/raven-python,johansteffner/raven-python,Goldmund-Wyldebeast-Wunderliebe/raven-python,dirtycoder/opbeat_python,nikolas/raven-python,BuildingLink/sentry,Natim/sentry,jean/sentry,lepture/raven-python,ifduyue/sentry,getsentry/raven-python,arthurlogilab/raven-python,fuziontech/sentry,primepix/django-sentry,ngonzalvez/sentry,beniwohli/apm-agent-python,gg7/sentry,beeftornado/sentry,TedaLIEz/sentry,akheron/raven-python,jokey2k/sentry,tbarbugli/sentry_fork,danriti/raven-python,boneyao/sentry,jmagnusson/raven-python,fotinakis/sentry,fuziontech/sentry,looker/sentry,mitsuhiko/sentry,recht/raven-python,alex/raven,zenefits/sentry,Kronuz/django-sentry,mvaled/sentry,mitsuhiko/sentry,mvaled/sentry,Kryz/sentry,camilonova/sentry,chayapan/django-sentry,hongliang5623/sentry,inspirehep/raven-python,beeftornado/sentry,icereval/raven-python,camilonova/sentry,zenefits/sentry,dbravender/raven-python,ticosax/opbeat_python,BayanGroup/sentry,ewdurbin/raven-python,jean/sentry,rdio/sentry,johansteffner/raven-python,patrys/opbeat_python,Kryz/sentry,mvaled/sentry,BuildingLink/sentry,BuildingLink/sentry,jmagnusson/raven-python,TedaLIEz/sentry,ewdurbin/sentry,SilentCircle/sentry,patrys/opbeat_python,jmp0xf/raven-python,looker/sentry,gg7/sentry,daikeren/opbeat_python,Photonomie/raven-python,kevinlondon/sentry,danriti/raven-python,dbravender/raven-python,JackDanger/sentry,WoLpH/django-sentry,someonehan/raven-python,someonehan/raven-python,alex/sentry,daevaorn/sentry,smarkets/raven-python,gencer/sentry,hzy/raven-python,nicholasserra/sentry,primepix/django-sentry,SilentCircle/sentry,beniwohli/apm-agent-python,mvaled/sentry,beniwohli/apm-agent-python,boneyao/sentry,jokey2k/sentry,lepture/raven-python,hongliang5623/sentry,felixbuenemann/sentry,getsentry/raven-python,tbarbugli/sentry_fork,ewdurbin/raven-python,daikeren/opbeat_python,beni55/sentry,JamesMura/sentry,BuildingLink/sentry,ticosax/opbeat_python,daevaorn/sentry,openlabs/raven,ifduyue/sentry,SilentCircle/sentry,tarkatronic/opbeat_python,beeftornado/sentry,fotinakis/sentry,Kronuz/django-sentry,ronaldevers/raven-python,llonchj/sentry,beni55/sentry,ronaldevers/raven-python,NickPresta/sentry,hongliang5623/sentry,songyi199111/sentry,alex/sentry,inspirehep/raven-python,kevinastone/sentry,primepix/django-sentry,gencer/sentry,fotinakis/sentry,ronaldevers/raven-python,felixbuenemann/sentry,lepture/raven-python,kevinlondon/sentry,smarkets/raven-python,icereval/raven-python,JamesMura/sentry,looker/sentry,JackDanger/sentry,arthurlogilab/raven-python,NickPresta/sentry,percipient/raven-python,TedaLIEz/sentry,drcapulet/sentry,kevinastone/sentry,akheron/raven-python,alexm92/sentry,SilentCircle/sentry,inspirehep/raven-python,1tush/sentry,recht/raven-python,felixbuenemann/sentry,mvaled/sentry,vperron/sentry,smarkets/raven-python,alex/sentry,rdio/sentry,daevaorn/sentry,WoLpH/django-sentry,beni55/sentry,danriti/raven-python,nicholasserra/sentry,1tush/sentry,Photonomie/raven-python,nikolas/raven-python,kevinastone/sentry,vperron/sentry,mitsuhiko/raven,NickPresta/sentry,lopter/raven-python-old,akalipetis/raven-python,pauloschilling/sentry,ifduyue/sentry,patrys/opbeat_python,icereval/raven-python,songyi199111/sentry,zenefits/sentry,dcramer/sentry-old,alexm92/sentry,patrys/opbeat_python,jokey2k/sentry,akalipetis/raven-python,arthurlogilab/raven-python,dcramer/sentry-old,nikolas/raven-python,jean/sentry,vperron/sentry,BuildingLink/sentry,wujuguang/sentry,dirtycoder/opbeat_python,mvaled/sentry,pauloschilling/sentry,wujuguang/sentry,getsentry/raven-python,korealerts1/sentry,JamesMura/sentry,dbravender/raven-python,ifduyue/sentry,mitsuhiko/raven,Kronuz/django-sentry,llonchj/sentry,BayanGroup/sentry,collective/mr.poe,drcapulet/sentry,argonemyth/sentry,chayapan/django-sentry,tarkatronic/opbeat_python,1tush/sentry,camilonova/sentry,ewdurbin/raven-python,ticosax/opbeat_python,dcramer/sentry-old,JTCunning/sentry,nikolas/raven-python,ngonzalvez/sentry,imankulov/sentry,wong2/sentry,boneyao/sentry,jmagnusson/raven-python,Goldmund-Wyldebeast-Wunderliebe/raven-python,jbarbuto/raven-python,tbarbugli/sentry_fork,pauloschilling/sentry,JTCunning/sentry,gencer/sentry,BayanGroup/sentry,daevaorn/sentry,percipient/raven-python,zenefits/sentry,beniwohli/apm-agent-python,wong2/sentry,jean/sentry,ngonzalvez/sentry,nicholasserra/sentry,gencer/sentry,JamesMura/sentry,gg7/sentry,icereval/raven-python,arthurlogilab/raven-python,argonemyth/sentry,WoLpH/django-sentry,zenefits/sentry,hzy/raven-python,Goldmund-Wyldebeast-Wunderliebe/raven-python,jbarbuto/raven-python,fotinakis/sentry,wong2/sentry,johansteffner/raven-python,imankulov/sentry,songyi199111/sentry,wujuguang/sentry,Kryz/sentry,fuziontech/sentry,JamesMura/sentry,daikeren/opbeat_python,inspirehep/raven-python,ifduyue/sentry,alexm92/sentry,jbarbuto/raven-python,jbarbuto/raven-python,jmp0xf/raven-python,jmp0xf/raven-python,korealerts1/sentry,rdio/sentry,ewdurbin/sentry,gencer/sentry,tarkatronic/opbeat_python,chayapan/django-sentry,akheron/raven-python