Consolidate all the .rubocop.yml into a single file, finished out cleanups for
all the Ruby files.
Change-Id: I92d5983724d5d0185cd25bea6a0f46657a6c05d4
Addresses: blueprint rubocop-for-block-storage
Per the mailing list thread, introducing Rubocop as a replacement for Tailor.
Assuming Jenkins likes this, more pedantic patches will follow to make Rubocop
happy. So far this is just spacing issues and adding UTF-8 headers, but more
work will need to be done to remove all of the changes for the .rubocop-todo.yml
Addresses: blueprint rubocop-for-block-storage
Change-Id: Ibb11739e452016c101995a371d031faeeb7e7683