Bump python-cinderclient requirement to >=1.0.5

The requirement for python-cinderclient should be bumped to 1.0.5
in order to support some of the arguments (e.g. snapshots).

Change-Id: I4028c3159057ec25d6bb9df03a3c5380850c49fb
Merge "Bump python-cinderclient requirement to >=1.0.5"