Move `Forbidden` exceptions to `RECOVERABLE` group
Move `Forbidden` exceptions to `RECOVERABLE` group

Previously the Forbidden exceptions raised by clients were classified
as UNAUTHORIZED. This classification is not entirely correct, as
the UNAUTHORIZED group of exceptions implies that the user should be
logged out and forced to log in again. This, however, is not the case
with Forbidden exceptions. Thus, it is more appropriate to place the
Forbidden exceptions into the RECOVERABLE group.

Change-Id: I7e52ed72d66e9d0496bc07036e48c968e7a66c2e
Closes-bug: #1299126

watonyweng/horizon,xinwu/horizon,takeshineshiro/horizon,Daniex/horizon,maestro-hybrid-cloud/horizon,orbitfp7/horizon,promptworks/horizon,dan1/horizon-x509,philoniare/horizon,izadorozhna/dashboard_integration_tests,agileblaze/OpenStackTwoFactorAuthentication,froyobin/horizon,endorphinl/horizon,froyobin/horizon,tsufiev/horizon,zouyapeng/horizon,Metaswitch/horizon,icloudrnd/automation_tools,Solinea/horizon,tellesnobrega/horizon,NCI-Cloud/horizon,zouyapeng/horizon,Solinea/horizon,NeCTAR-RC/horizon,VaneCloud/horizon,xinwu/horizon,vladryk/horizon,Metaswitch/horizon,bac/horizon,Dark-Hacker/horizon,Hodorable/0602,xme1226/horizon,coreycb/horizon,vladryk/horizon,redhat-openstack/horizon,Metaswitch/horizon,endorphinl/horizon,liyitest/rr,Dark-Hacker/horizon,yjxtogo/horizon,yeming233/horizon,takeshineshiro/horizon,redhat-cip/horizon,flochaz/horizon,damien-dg/horizon,BiznetGIO/horizon,sandvine/horizon,mandeepdhami/horizon,philoniare/horizon,JioCloud/horizon,kfox1111/horizon,promptworks/horizon,ChameleonCloud/horizon,RudoCris/horizon,orbitfp7/horizon,CiscoSystems/avos,wangxiangyu/horizon,tsufiev/horizon,mrunge/horizon_lib,Hodorable/0602,vladryk/horizon,idjaw/horizon,dan1/horizon-proto,anthonydillon/horizon,ging/horizon,pranavtendolkr/horizon,nvoron23/avos,Hodorable/0602,icloudrnd/automation_tools,ChameleonCloud/horizon,pranavtendolkr/horizon,bigswitch/horizon,flochaz/horizon,mrunge/openstack_horizon,davidcusatis/horizon,tqtran7/horizon,Daniex/horizon,karthik-suresh/horizon,bac/horizon,maestro-hybrid-cloud/horizon,yjxtogo/horizon,wolverineav/horizon,ChameleonCloud/horizon,pranavtendolkr/horizon,saydulk/horizon,mrunge/openstack_horizon,Mirantis/mos-horizon,mandeepdhami/horizon,xme1226/horizon,watonyweng/horizon,Metaswitch/horizon,luhanhan/horizon,Tesora/tesora-horizon,damien-dg/horizon,karthik-suresh/horizon,wolverineav/horizon,bac/horizon,endorphinl/horizon,anthonydillon/horizon,pranavtendolkr/horizon,wangxiangyu/horizon,liyitest/rr,Daniex/horizon,wolverineav/horizon,dan1/horizon-x509,takeshineshiro/horizon,endorphinl/horizon-fork,dan1/horizon-x509,eayunstack/horizon,newrocknj/horizon,RudoCris/horizon,doug-fish/horizon,aaronorosen/horizon-congress,nvoron23/avos,endorphinl/horizon,eayunstack/horizon,redhat-openstack/horizon,luhanhan/horizon,Mirantis/mos-horizon,newrocknj/horizon,gerrive/horizon,vladryk/horizon,Solinea/horizon,doug-fish/horizon,kfox1111/horizon,RudoCris/horizon,noironetworks/horizon,karthik-suresh/horizon,mandeepdhami/horizon,CiscoSystems/avos,saydulk/horizon,coreycb/horizon,aaronorosen/horizon-congress,ging/horizon,RudoCris/horizon,openstack/horizon,tqtran7/horizon,agileblaze/OpenStackTwoFactorAuthentication,FNST-OpenStack/horizon,bigswitch/horizon,ging/horizon,mrunge/horizon,saydulk/horizon,bigswitch/horizon,davidcusatis/horizon,blueboxgroup/horizon,izadorozhna/dashboard_integration_tests,CiscoSystems/avos,CiscoSystems/horizon,philoniare/horizon,Solinea/horizon,noironetworks/horizon,idjaw/horizon,django-leonardo/horizon,tsufiev/horizon,tellesnobrega/horizon,dan1/horizon-proto,xinwu/horizon,j4/horizon,redhat-openstack/horizon,VaneCloud/horizon,xme1226/horizon,django-leonardo/horizon,henaras/horizon,Tesora/tesora-horizon,sandvine/horizon,idjaw/horizon,tqtran7/horizon,froyobin/horizon,watonyweng/horizon,redhat-cip/horizon,NeCTAR-RC/horizon,Dark-Hacker/horizon,CiscoSystems/horizon,kfox1111/horizon,icloudrnd/automation_tools,doug-fish/horizon,anthonydillon/horizon,j4/horizon,bigswitch/horizon,henaras/horizon,tellesnobrega/horizon,mdavid/horizon,agileblaze/OpenStackTwoFactorAuthentication,karthik-suresh/horizon,NCI-Cloud/horizon,Mirantis/mos-horizon,NCI-Cloud/horizon,coreycb/horizon,orbitfp7/horizon,mandeepdhami/horizon,icloudrnd/automation_tools,henaras/horizon,aaronorosen/horizon-congress,promptworks/horizon,wangxiangyu/horizon,yeming233/horizon,endorphinl/horizon-fork,yjxtogo/horizon,NCI-Cloud/horizon,FNST-OpenStack/horizon,BiznetGIO/horizon,philoniare/horizon,mdavid/horizon,Hodorable/0602,maestro-hybrid-cloud/horizon,flochaz/horizon,endorphinl/horizon-fork,bac/horizon,kfox1111/horizon,henaras/horizon,Tesora/tesora-horizon,noironetworks/horizon,agileblaze/OpenStackTwoFactorAuthentication,blueboxgroup/horizon,dan1/horizon-proto,JioCloud/horizon,gerrive/horizon,mrunge/horizon,FNST-OpenStack/horizon,ging/horizon,Daniex/horizon,CiscoSystems/horizon,FNST-OpenStack/horizon,VaneCloud/horizon,watonyweng/horizon,django-leonardo/horizon,luhanhan/horizon,damien-dg/horizon,sandvine/horizon,doug-fish/horizon,dan1/horizon-proto,redhat-cip/horizon,openstack/horizon,sandvine/horizon,xinwu/horizon,mrunge/horizon,wangxiangyu/horizon,tqtran7/horizon,tsufiev/horizon,newrocknj/horizon,blueboxgroup/horizon,coreycb/horizon,gerrive/horizon,Dark-Hacker/horizon,j4/horizon,tellesnobrega/horizon,maestro-hybrid-cloud/horizon,damien-dg/horizon,yeming233/horizon,flochaz/horizon,anthonydillon/horizon,davidcusatis/horizon,mrunge/horizon_lib,CiscoSystems/horizon,nvoron23/avos,idjaw/horizon,mrunge/horizon_lib,BiznetGIO/horizon,Mirantis/mos-horizon,VaneCloud/horizon,nvoron23/avos,NeCTAR-RC/horizon,takeshineshiro/horizon,redhat-openstack/horizon,davidcusatis/horizon,mdavid/horizon,CiscoSystems/avos,Tesora/tesora-horizon,liyitest/rr,wolverineav/horizon,gerrive/horizon,django-leonardo/horizon,j4/horizon,eayunstack/horizon,luhanhan/horizon,yjxtogo/horizon,endorphinl/horizon-fork,zouyapeng/horizon,openstack/horizon,NeCTAR-RC/horizon,redhat-cip/horizon,dan1/horizon-x509,JioCloud/horizon,noironetworks/horizon,mrunge/openstack_horizon,BiznetGIO/horizon,orbitfp7/horizon,ChameleonCloud/horizon,newrocknj/horizon,openstack/horizon,liyitest/rr,blueboxgroup/horizon,mdavid/horizon,yeming233/horizon,promptworks/horizon,saydulk/horizon,zouyapeng/horizon