Update the StorPool Cinder patches

The context for some of them changed in the Cinder master branch, so
`git am` was no longer able to apply them directly. Also, import some
updates to the patches - documentation, release notes, etc - so that
they match exactly what is submitted to the OpenDev Gerrit instance for
merging upstream.

Change-Id: Iacd95c275340faa435a2bf3a83a61e28ab8f8bf3
10 files changed
tree: bb785f1413737ac35c67cc68e3ae4d9822f74d25
  1. .gitreview
  2. patches/
  3. tools/