import mock module directly
import mock module directly

the mock module is not in unittest2 so include it directly

Signed-off-by: Tomaz Muraus <bb4af54d4692022d34bcf290dffd91d21e083d18@tomaz.me>

techhat/libcloud,StackPointCloud/libcloud,samuelchong/libcloud,DimensionDataCBUSydney/libcloud,iPlantCollaborativeOpenSource/libcloud,mistio/libcloud,apache/libcloud,iPlantCollaborativeOpenSource/libcloud,DimensionDataCBUSydney/libcloud,ByteInternet/libcloud,watermelo/libcloud,andrewsomething/libcloud,apache/libcloud,apache/libcloud,watermelo/libcloud,andrewsomething/libcloud,ZuluPro/libcloud,mgogoulos/libcloud,SecurityCompass/libcloud,andrewsomething/libcloud,pquentin/libcloud,StackPointCloud/libcloud,mistio/libcloud,NexusIS/libcloud,watermelo/libcloud,erjohnso/libcloud,mistio/libcloud,SecurityCompass/libcloud,Kami/libcloud,erjohnso/libcloud,iPlantCollaborativeOpenSource/libcloud,ByteInternet/libcloud,Scalr/libcloud,techhat/libcloud,t-tran/libcloud,ZuluPro/libcloud,NexusIS/libcloud,DimensionDataCBUSydney/libcloud,vongazman/libcloud,t-tran/libcloud,illfelder/libcloud,pquentin/libcloud,Scalr/libcloud,samuelchong/libcloud,vongazman/libcloud,NexusIS/libcloud,SecurityCompass/libcloud,t-tran/libcloud,Kami/libcloud,erjohnso/libcloud,mgogoulos/libcloud,samuelchong/libcloud,Scalr/libcloud,mgogoulos/libcloud,pquentin/libcloud,techhat/libcloud,Kami/libcloud,ByteInternet/libcloud,StackPointCloud/libcloud,illfelder/libcloud,illfelder/libcloud,vongazman/libcloud,ZuluPro/libcloud