Clear up the .gitignore file
Clear up the .gitignore file

1.Remove duplicate items
2.Sort to alphabetical order
3.Remove "*.sw[po]" instead "*.swp" and "*.swo" for pass
bundling test.

Fixes: bug #1039898
Change-Id: Id8e03ecce6d2ab6d823a992a3a225b5ceb44aa80

angdraug/nova,zhimin711/nova,Triv90/Nova,klmitch/nova,cloudbase/nova,Stavitsky/nova,jianghuaw/nova,zhimin711/nova,Juniper/nova,watonyweng/nova,luogangyi/bcec-nova,TwinkleChawla/nova,tealover/nova,NeCTAR-RC/nova,cyx1231st/nova,CiscoSystems/nova,badock/nova,sridevikoushik31/nova,gooddata/openstack-nova,savi-dev/nova,Francis-Liu/animated-broccoli,Stavitsky/nova,dims/nova,dstroppa/openstack-smartos-nova-grizzly,akash1808/nova_test_latest,Metaswitch/calico-nova,felixma/nova,edulramirez/nova,BeyondTheClouds/nova,gooddata/openstack-nova,vladikr/nova_drafts,cernops/nova,CiscoSystems/nova,yrobla/nova,tealover/nova,CloudServer/nova,raildo/nova,ted-gould/nova,JioCloud/nova_test_latest,cernops/nova,sebrandon1/nova,gooddata/openstack-nova,mikalstill/nova,Francis-Liu/animated-broccoli,rajalokan/nova,CCI-MOC/nova,scripnichenko/nova,devendermishrajio/nova_test_latest,petrutlucian94/nova_dev,maoy/zknova,JioCloud/nova_test_latest,fnordahl/nova,felixma/nova,devendermishrajio/nova,Tehsmash/nova,noironetworks/nova,affo/nova,viggates/nova,NeCTAR-RC/nova,redhat-openstack/nova,mikalstill/nova,JianyuWang/nova,mgagne/nova,rajalokan/nova,tianweizhang/nova,ntt-sic/nova,mmnelemane/nova,rrader/nova-docker-plugin,watonyweng/nova,Juniper/nova,edulramirez/nova,mgagne/nova,spring-week-topos/nova-week,apporc/nova,maelnor/nova,isyippee/nova,maoy/zknova,Brocade-OpenSource/OpenStack-DNRM-Nova,berrange/nova,JianyuWang/nova,vladikr/nova_drafts,cyx1231st/nova,tangfeixiong/nova,usc-isi/nova,leilihh/novaha,whitepages/nova,devendermishrajio/nova_test_latest,openstack/nova,Metaswitch/calico-nova,tudorvio/nova,houshengbo/nova_vmware_compute_driver,bclau/nova,rajalokan/nova,yatinkumbhare/openstack-nova,shail2810/nova,qwefi/nova,shahar-stratoscale/nova,rrader/nova-docker-plugin,MountainWei/nova,petrutlucian94/nova_dev,zaina/nova,thomasem/nova,mikalstill/nova,affo/nova,shail2810/nova,JioCloud/nova,cloudbase/nova-virtualbox,virtualopensystems/nova,yosshy/nova,aristanetworks/arista-ovs-nova,viggates/nova,varunarya10/nova_test_latest,ted-gould/nova,jeffrey4l/nova,maheshp/novatest,maheshp/novatest,shootstar/novatest,openstack/nova,redhat-openstack/nova,BeyondTheClouds/nova,LoHChina/nova,bigswitch/nova,iuliat/nova,cloudbau/nova,varunarya10/nova_test_latest,vmturbo/nova,tudorvio/nova,DirectXMan12/nova-hacking,LoHChina/nova,SUSE-Cloud/nova,usc-isi/nova,sacharya/nova,jianghuaw/nova,jianghuaw/nova,projectcalico/calico-nova,vmturbo/nova,NewpTone/stacklab-nova,zaina/nova,Yusuke1987/openstack_template,kimjaejoong/nova,dims/nova,Juniper/nova,MountainWei/nova,maelnor/nova,barnsnake351/nova,Yuriy-Leonov/nova,rickerc/nova_audit,iuliat/nova,alexandrucoman/vbox-nova-driver,nikesh-mahalka/nova,fajoy/nova,citrix-openstack-build/nova,takeshineshiro/nova,cloudbau/nova,alvarolopez/nova,plumgrid/plumgrid-nova,ruslanloman/nova,adelina-t/nova,bgxavier/nova,Yuriy-Leonov/nova,Brocade-OpenSource/OpenStack-DNRM-Nova,raildo/nova,rahulunair/nova,yrobla/nova,usc-isi/nova,eonpatapon/nova,CloudServer/nova,belmiromoreira/nova,double12gzh/nova,zzicewind/nova,imsplitbit/nova,noironetworks/nova,maheshp/novatest,yatinkumbhare/openstack-nova,eayunstack/nova,ewindisch/nova,fajoy/nova,TwinkleChawla/nova,j-carpentier/nova,eonpatapon/nova,bgxavier/nova,klmitch/nova,shahar-stratoscale/nova,tanglei528/nova,double12gzh/nova,fnordahl/nova,sacharya/nova,gooddata/openstack-nova,jeffrey4l/nova,TieWei/nova,scripnichenko/nova,barnsnake351/nova,gspilio/nova,orbitfp7/nova,phenoxim/nova,thomasem/nova,fajoy/nova,j-carpentier/nova,mandeepdhami/nova,sridevikoushik31/nova,sridevikoushik31/nova,eharney/nova,phenoxim/nova,savi-dev/nova,DirectXMan12/nova-hacking,petrutlucian94/nova,qwefi/nova,mahak/nova,cloudbase/nova,DirectXMan12/nova-hacking,belmiromoreira/nova,saleemjaveds/https-github.com-openstack-nova,blueboxgroup/nova,sridevikoushik31/openstack,ruslanloman/nova,ntt-sic/nova,aristanetworks/arista-ovs-nova,eayunstack/nova,dawnpower/nova,dstroppa/openstack-smartos-nova-grizzly,apporc/nova,imsplitbit/nova,adelina-t/nova,yrobla/nova,sridevikoushik31/nova,CEG-FYP-OpenStack/scheduler,petrutlucian94/nova,takeshineshiro/nova,maoy/zknova,leilihh/nova,bclau/nova,mmnelemane/nova,paulmathews/nova,gspilio/nova,sridevikoushik31/openstack,NewpTone/stacklab-nova,rahulunair/nova,houshengbo/nova_vmware_compute_driver,isyippee/nova,gspilio/nova,openstack/nova,devoid/nova,cernops/nova,vmturbo/nova,joker946/nova,akash1808/nova_test_latest,cloudbase/nova-virtualbox,zzicewind/nova,klmitch/nova,plumgrid/plumgrid-nova,alvarolopez/nova,spring-week-topos/nova-week,leilihh/novaha,mahak/nova,tangfeixiong/nova,virtualopensystems/nova,aristanetworks/arista-ovs-nova,silenceli/nova,Triv90/Nova,cloudbase/nova,paulmathews/nova,whitepages/nova,houshengbo/nova_vmware_compute_driver,OpenAcademy-OpenStack/nova-scheduler,hanlind/nova,Juniper/nova,silenceli/nova,eharney/nova,devoid/nova,alaski/nova,leilihh/nova,sebrandon1/nova,ewindisch/nova,orbitfp7/nova,akash1808/nova,shootstar/novatest,rickerc/nova_audit,bigswitch/nova,BeyondTheClouds/nova,rajalokan/nova,paulmathews/nova,mandeepdhami/nova,hanlind/nova,tianweizhang/nova,NewpTone/stacklab-nova,nikesh-mahalka/nova,savi-dev/nova,yosshy/nova,angdraug/nova,dawnpower/nova,sridevikoushik31/openstack,kimjaejoong/nova,berrange/nova,Yusuke1987/openstack_template,CCI-MOC/nova,Triv90/Nova,SUSE-Cloud/nova,alaski/nova,devendermishrajio/nova,badock/nova,Tehsmash/nova,OpenAcademy-OpenStack/nova-scheduler,sebrandon1/nova,hanlind/nova,luogangyi/bcec-nova,vmturbo/nova,saleemjaveds/https-github.com-openstack-nova,JioCloud/nova,TieWei/nova,akash1808/nova,projectcalico/calico-nova,joker946/nova,blueboxgroup/nova,mahak/nova,klmitch/nova,dstroppa/openstack-smartos-nova-grizzly,citrix-openstack-build/nova,tanglei528/nova,rahulunair/nova,jianghuaw/nova,alexandrucoman/vbox-nova-driver,CEG-FYP-OpenStack/scheduler