Add charm and bundle contents to the blob store.
New PutUnchallenged method on the blob store.
Unexport the nop closer.
Merge branch 'v4' into store-charm.
Recreate dependencies.
Back to a working state.
Tests for the archive types.
Merge branch 'v4' into store-charm.
Reverted to original dependencies.
Merge pull request #31 from frankban/store-charm

Add charm and bundle contents to the blob store.