Brick fix BrickException message formatting

This patch fixes an issue when passing in a
formatting key and value for formatted
text messages for all Brick exceptions.

Added unit tests for brick's exception

Change-Id: I76dcfc6872ca20305d1844162dd0ae28c4bb565c
Related-Bug: 1238085
Fix misspellings in cinder

Fix misspellings detected by:
* pip install misspellings
* git ls-files | grep -v locale | misspellings -f -

Change-Id: I4780a9cdd4a2aff5a3dbc55c87e93b0972d907db
Closes-Bug: #1257295
Merge "Fix misspellings in cinder"
Merge "Brick fix BrickException message formatting"