Add .gitreview file

Change-Id: Iaa864e3f8adfae83be75e249882271c0058c72ae
Rename CACHDIR to CACHEDIR

Looks like it's just a typo.

Change-Id: Ia4bf1152870ba1996171f5502f1f074f11ffd446
Merge "Rename CACHDIR to CACHEDIR"
Sync toci with current devtest

Toci hasn't worked in nearly two weeks, ever since some stuff was refactored,
after this commit toci
1. is now back in sync with devtest in incubator.
2. brings up an overcloud by default (set TOCI_DO_OVERCLOUD=0 to stop a
   undercloud).
3. clones all git repositories to /opt/toci (these arn't refreshed
   between toci runs unless removed).
4. changes some env variables so that the default behaviour is now
   closer to a what a user setting up a dev env would want.
5. removes unused patches and adds some new ones.
6. Adds a bit more documentation.

Change-Id: I19a34b1a400ec646f37310f265d1345bb6882dc3
Toci has moved

To https://github.com/openstack-infra/tripleo-ci

Change-Id: I2228fb2ff68d14b0ed5ba0bf38936e649fb94b35