Add _upload_data method and missing docstrings.
Add _upload_data method and missing docstrings.

git-svn-id: 9ad005ce451fa0ce30ad6352b03eb45b36893355@1196289 13f79535-47bb-0310-9956-ffa450edef68

ZuluPro/libcloud,Itxaka/libcloud,Scalr/libcloud,ClusterHQ/libcloud,curoverse/libcloud,schaubl/libcloud,Cloud-Elasticity-Services/as-libcloud,cloudControl/libcloud,StackPointCloud/libcloud,cloudControl/libcloud,erjohnso/libcloud,iPlantCollaborativeOpenSource/libcloud,NexusIS/libcloud,erjohnso/libcloud,atsaki/libcloud,ByteInternet/libcloud,wrigri/libcloud,jimbobhickville/libcloud,wido/libcloud,sergiorua/libcloud,Itxaka/libcloud,DimensionDataCBUSydney/libcloud,supertom/libcloud,niteoweb/libcloud,Itxaka/libcloud,aviweit/libcloud,pquentin/libcloud,watermelo/libcloud,briancurtin/libcloud,vongazman/libcloud,watermelo/libcloud,lochiiconnectivity/libcloud,ByteInternet/libcloud,ninefold/libcloud,Kami/libcloud,mistio/libcloud,Kami/libcloud,carletes/libcloud,t-tran/libcloud,Cloud-Elasticity-Services/as-libcloud,t-tran/libcloud,sfriesel/libcloud,mtekel/libcloud,NexusIS/libcloud,jimbobhickville/libcloud,atsaki/libcloud,aleGpereira/libcloud,thesquelched/libcloud,samuelchong/libcloud,smaffulli/libcloud,ClusterHQ/libcloud,sergiorua/libcloud,mbrukman/libcloud,dcorbacho/libcloud,apache/libcloud,jimbobhickville/libcloud,Verizon/libcloud,mistio/libcloud,apache/libcloud,wido/libcloud,sahildua2305/libcloud,illfelder/libcloud,cryptickp/libcloud,Jc2k/libcloud,marcinzaremba/libcloud,sgammon/libcloud,supertom/libcloud,aleGpereira/libcloud,jerryblakley/libcloud,andrewsomething/libcloud,mbrukman/libcloud,lochiiconnectivity/libcloud,mathspace/libcloud,NexusIS/libcloud,iPlantCollaborativeOpenSource/libcloud,sahildua2305/libcloud,Kami/libcloud,pantheon-systems/libcloud,mtekel/libcloud,watermelo/libcloud,DimensionDataCBUSydney/libcloud,Cloud-Elasticity-Services/as-libcloud,erjohnso/libcloud,Scalr/libcloud,mgogoulos/libcloud,mbrukman/libcloud,andrewsomething/libcloud,sahildua2305/libcloud,lochiiconnectivity/libcloud,Keisuke69/libcloud,dcorbacho/libcloud,aviweit/libcloud,niteoweb/libcloud,cloudControl/libcloud,carletes/libcloud,t-tran/libcloud,illfelder/libcloud,aviweit/libcloud,ZuluPro/libcloud,StackPointCloud/libcloud,curoverse/libcloud,sergiorua/libcloud,cryptickp/libcloud,vongazman/libcloud,Scalr/libcloud,pantheon-systems/libcloud,smaffulli/libcloud,mathspace/libcloud,ByteInternet/libcloud,JamesGuthrie/libcloud,wuyuewen/libcloud,mtekel/libcloud,kater169/libcloud,thesquelched/libcloud,Keisuke69/libcloud,sfriesel/libcloud,JamesGuthrie/libcloud,SecurityCompass/libcloud,andrewsomething/libcloud,samuelchong/libcloud,Verizon/libcloud,thesquelched/libcloud,supertom/libcloud,sfriesel/libcloud,ninefold/libcloud,MrBasset/libcloud,MrBasset/libcloud,briancurtin/libcloud,pantheon-systems/libcloud,jerryblakley/libcloud,SecurityCompass/libcloud,niteoweb/libcloud,marcinzaremba/libcloud,munkiat/libcloud,iPlantCollaborativeOpenSource/libcloud,Jc2k/libcloud,samuelchong/libcloud,schaubl/libcloud,pquentin/libcloud,wuyuewen/libcloud,marcinzaremba/libcloud,Verizon/libcloud,briancurtin/libcloud,atsaki/libcloud,munkiat/libcloud,wuyuewen/libcloud,sgammon/libcloud,DimensionDataCBUSydney/libcloud,JamesGuthrie/libcloud,MrBasset/libcloud,mgogoulos/libcloud,SecurityCompass/libcloud,kater169/libcloud,techhat/libcloud,munkiat/libcloud,apache/libcloud,illfelder/libcloud,curoverse/libcloud,carletes/libcloud,mistio/libcloud,kater169/libcloud,smaffulli/libcloud,aleGpereira/libcloud,wido/libcloud,cryptickp/libcloud,vongazman/libcloud,pquentin/libcloud,StackPointCloud/libcloud,schaubl/libcloud,ZuluPro/libcloud,wrigri/libcloud,dcorbacho/libcloud,jerryblakley/libcloud,techhat/libcloud,mgogoulos/libcloud,mathspace/libcloud,techhat/libcloud,wrigri/libcloud