Make db.fakes stub out API not sqlalchemy
Make db.fakes stub out API not sqlalchemy

We shouldn't be stubbing out the backend db implementation, and instead
be stubbing out the db.api itself. One small step in making us less
sqlalchemy dependant.

Change-Id: Ifb2c45353edc281456e7407dd36b4cc4feea1ac0

edulramirez/nova,cloudbau/nova,ruslanloman/nova,vladikr/nova_drafts,phenoxim/nova,j-carpentier/nova,whitepages/nova,alexandrucoman/vbox-nova-driver,angdraug/nova,JianyuWang/nova,jeffrey4l/nova,shahar-stratoscale/nova,Juniper/nova,tianweizhang/nova,virtualopensystems/nova,devoid/nova,thomasem/nova,leilihh/novaha,zhimin711/nova,BeyondTheClouds/nova,dims/nova,CiscoSystems/nova,varunarya10/nova_test_latest,JioCloud/nova_test_latest,Metaswitch/calico-nova,petrutlucian94/nova,scripnichenko/nova,bgxavier/nova,Brocade-OpenSource/OpenStack-DNRM-Nova,mahak/nova,klmitch/nova,viggates/nova,rickerc/nova_audit,blueboxgroup/nova,sebrandon1/nova,thomasem/nova,jianghuaw/nova,fnordahl/nova,edulramirez/nova,yatinkumbhare/openstack-nova,leilihh/nova,Yuriy-Leonov/nova,hanlind/nova,leilihh/nova,JioCloud/nova,vmturbo/nova,CCI-MOC/nova,jianghuaw/nova,jianghuaw/nova,openstack/nova,TieWei/nova,shahar-stratoscale/nova,zaina/nova,rrader/nova-docker-plugin,joker946/nova,ruslanloman/nova,rajalokan/nova,bclau/nova,cloudbase/nova-virtualbox,klmitch/nova,tudorvio/nova,Francis-Liu/animated-broccoli,sebrandon1/nova,orbitfp7/nova,petrutlucian94/nova_dev,silenceli/nova,rajalokan/nova,scripnichenko/nova,double12gzh/nova,Stavitsky/nova,vmturbo/nova,gooddata/openstack-nova,Yusuke1987/openstack_template,mmnelemane/nova,watonyweng/nova,yatinkumbhare/openstack-nova,CEG-FYP-OpenStack/scheduler,petrutlucian94/nova,nikesh-mahalka/nova,JioCloud/nova_test_latest,LoHChina/nova,Juniper/nova,adelina-t/nova,zhimin711/nova,klmitch/nova,fnordahl/nova,barnsnake351/nova,yosshy/nova,imsplitbit/nova,rajalokan/nova,cloudbase/nova-virtualbox,projectcalico/calico-nova,mikalstill/nova,cernops/nova,cloudbase/nova,eharney/nova,TwinkleChawla/nova,ewindisch/nova,shootstar/novatest,Yusuke1987/openstack_template,orbitfp7/nova,silenceli/nova,mgagne/nova,varunarya10/nova_test_latest,apporc/nova,NeCTAR-RC/nova,ted-gould/nova,badock/nova,affo/nova,qwefi/nova,joker946/nova,barnsnake351/nova,rahulunair/nova,devendermishrajio/nova_test_latest,tanglei528/nova,raildo/nova,Metaswitch/calico-nova,ewindisch/nova,iuliat/nova,cloudbase/nova,Yuriy-Leonov/nova,tangfeixiong/nova,ted-gould/nova,akash1808/nova,mandeepdhami/nova,MountainWei/nova,CiscoSystems/nova,projectcalico/calico-nova,LoHChina/nova,tealover/nova,viggates/nova,BeyondTheClouds/nova,rahulunair/nova,sacharya/nova,maelnor/nova,virtualopensystems/nova,Juniper/nova,cloudbase/nova,bclau/nova,eonpatapon/nova,mikalstill/nova,plumgrid/plumgrid-nova,devendermishrajio/nova,klmitch/nova,sacharya/nova,ntt-sic/nova,felixma/nova,dawnpower/nova,cernops/nova,ntt-sic/nova,noironetworks/nova,SUSE-Cloud/nova,devoid/nova,zzicewind/nova,Brocade-OpenSource/OpenStack-DNRM-Nova,Francis-Liu/animated-broccoli,takeshineshiro/nova,spring-week-topos/nova-week,jeffrey4l/nova,citrix-openstack-build/nova,kimjaejoong/nova,cyx1231st/nova,rickerc/nova_audit,luogangyi/bcec-nova,gooddata/openstack-nova,tudorvio/nova,shail2810/nova,cernops/nova,akash1808/nova_test_latest,eonpatapon/nova,gooddata/openstack-nova,TwinkleChawla/nova,sebrandon1/nova,bigswitch/nova,JioCloud/nova,tanglei528/nova,Tehsmash/nova,phenoxim/nova,SUSE-Cloud/nova,double12gzh/nova,mmnelemane/nova,dims/nova,eharney/nova,BeyondTheClouds/nova,adelina-t/nova,leilihh/novaha,watonyweng/nova,yosshy/nova,belmiromoreira/nova,zzicewind/nova,TieWei/nova,petrutlucian94/nova_dev,jianghuaw/nova,OpenAcademy-OpenStack/nova-scheduler,cloudbau/nova,isyippee/nova,mgagne/nova,MountainWei/nova,vladikr/nova_drafts,tealover/nova,maelnor/nova,mandeepdhami/nova,CloudServer/nova,alaski/nova,redhat-openstack/nova,eayunstack/nova,saleemjaveds/https-github.com-openstack-nova,mahak/nova,eayunstack/nova,devendermishrajio/nova_test_latest,rahulunair/nova,berrange/nova,akash1808/nova_test_latest,gooddata/openstack-nova,rajalokan/nova,qwefi/nova,NeCTAR-RC/nova,alvarolopez/nova,openstack/nova,takeshineshiro/nova,badock/nova,tangfeixiong/nova,whitepages/nova,luogangyi/bcec-nova,apporc/nova,citrix-openstack-build/nova,isyippee/nova,berrange/nova,noironetworks/nova,hanlind/nova,CCI-MOC/nova,openstack/nova,j-carpentier/nova,Juniper/nova,alaski/nova,Stavitsky/nova,tianweizhang/nova,angdraug/nova,bgxavier/nova,vmturbo/nova,bigswitch/nova,alvarolopez/nova,affo/nova,spring-week-topos/nova-week,JianyuWang/nova,OpenAcademy-OpenStack/nova-scheduler,nikesh-mahalka/nova,blueboxgroup/nova,saleemjaveds/https-github.com-openstack-nova,Tehsmash/nova,kimjaejoong/nova,raildo/nova,zaina/nova,CloudServer/nova,cyx1231st/nova,mahak/nova,alexandrucoman/vbox-nova-driver,shail2810/nova,belmiromoreira/nova,akash1808/nova,devendermishrajio/nova,mikalstill/nova,hanlind/nova,vmturbo/nova,felixma/nova,imsplitbit/nova,shootstar/novatest,redhat-openstack/nova,plumgrid/plumgrid-nova,rrader/nova-docker-plugin,CEG-FYP-OpenStack/scheduler,iuliat/nova,dawnpower/nova