Update openstack/common/lockutils
Update openstack/common/lockutils

The following commits are in this update:

79e6bc6 fix lockutils.lock() to make it thread-safe
ace5120 Add main() to lockutils that creates temp dir for locks
537d8e2 Allow lockutils to get lock_path conf from envvar

Change-Id: I2190d0aae72ef4a29daf8f7d960da82a33b331b4

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