Completes the power_state mapping from compute driver and manager

Fixes bug 1166906

Added extra states to constants module together with test
cases checking every state map.

Also added some debug statements under blockdev and operator
to be able to spot obvious issues with images at deploy time.

Change-Id: I77ebb4d417a3875b761f5fb220d9274b79611ff0
Map internal S3 image state to EC2 API values

Fixes the EC2 API so it maps internal S3 image state values to
ones defined by the EC2 API rather than returning the internally
used values.

Fixes bug #1074904

Change-Id: Iabbda0e5fcbe4d572c76367c6f98d4bece050e73
Imported Translations from Transifex

Change-Id: I1d5e362f2e4e57cb8c754f27fc27fed328989597
Merge "Map internal S3 image state to EC2 API values"
Merge "Completes the power_state mapping from compute driver and manager"