Fix broken header dropdowns
Fix broken header dropdowns

Dropdowns in header are broken with angular-ui bootstrap v. 0.13.
This patch makes them work again.

Change-Id: I35d3087e22e2a29eb7630f73b4f7e6fa71ed2450
Closes-Bug: #1466146

django-leonardo/horizon,idjaw/horizon,ChameleonCloud/horizon,bac/horizon,idjaw/horizon,anthonydillon/horizon,davidcusatis/horizon,philoniare/horizon,damien-dg/horizon,gerrive/horizon,sandvine/horizon,idjaw/horizon,Tesora/tesora-horizon,damien-dg/horizon,takeshineshiro/horizon,Dark-Hacker/horizon,BiznetGIO/horizon,saydulk/horizon,vladryk/horizon,anthonydillon/horizon,FNST-OpenStack/horizon,wolverineav/horizon,BiznetGIO/horizon,dan1/horizon-x509,saydulk/horizon,dan1/horizon-x509,django-leonardo/horizon,FNST-OpenStack/horizon,davidcusatis/horizon,anthonydillon/horizon,Dark-Hacker/horizon,gerrive/horizon,redhat-openstack/horizon,maestro-hybrid-cloud/horizon,BiznetGIO/horizon,openstack/horizon,noironetworks/horizon,Dark-Hacker/horizon,coreycb/horizon,redhat-openstack/horizon,redhat-cip/horizon,django-leonardo/horizon,vladryk/horizon,anthonydillon/horizon,bac/horizon,vladryk/horizon,philoniare/horizon,vladryk/horizon,bac/horizon,yeming233/horizon,bigswitch/horizon,ChameleonCloud/horizon,yeming233/horizon,yeming233/horizon,wolverineav/horizon,damien-dg/horizon,davidcusatis/horizon,dan1/horizon-x509,noironetworks/horizon,philoniare/horizon,maestro-hybrid-cloud/horizon,FNST-OpenStack/horizon,noironetworks/horizon,django-leonardo/horizon,redhat-cip/horizon,openstack/horizon,FNST-OpenStack/horizon,coreycb/horizon,takeshineshiro/horizon,bigswitch/horizon,NeCTAR-RC/horizon,NeCTAR-RC/horizon,maestro-hybrid-cloud/horizon,takeshineshiro/horizon,gerrive/horizon,sandvine/horizon,coreycb/horizon,Mirantis/mos-horizon,saydulk/horizon,Mirantis/mos-horizon,noironetworks/horizon,BiznetGIO/horizon,Tesora/tesora-horizon,dan1/horizon-x509,bac/horizon,Mirantis/mos-horizon,NeCTAR-RC/horizon,wolverineav/horizon,ChameleonCloud/horizon,ChameleonCloud/horizon,gerrive/horizon,bigswitch/horizon,coreycb/horizon,Mirantis/mos-horizon,Tesora/tesora-horizon,redhat-openstack/horizon,wolverineav/horizon,sandvine/horizon,redhat-cip/horizon,davidcusatis/horizon,sandvine/horizon,maestro-hybrid-cloud/horizon,redhat-openstack/horizon,yeming233/horizon,openstack/horizon,Dark-Hacker/horizon,openstack/horizon,bigswitch/horizon,redhat-cip/horizon,philoniare/horizon,NeCTAR-RC/horizon,Tesora/tesora-horizon,saydulk/horizon,idjaw/horizon,takeshineshiro/horizon,damien-dg/horizon