small typos/added pip gitpython to error messages.
removed period
updated docstring 2 clarify better.
added missing set-upstream flag
fork and branch instructions more accurate now
Merge pull request #3671 from archtaku/docs

Minor tweaks to doc headings
fix bug: Client.cache_dir() evaluate path arg as "start with" pattern and return anything that starts with this
Add SLES to the GRAINMAP in service.py
Merge pull request #3674 from basepi/develop

Fixes #3455 Add SLES to the GRAINMAP in service.py
Fix postgres documentation. standardize table name
Merge pull request #3676 from UtahDave/develop

Fixes #3301 Fix postgres documentation. standardize table name
Merge pull request #3672 from giantlock/develop

probably bug in Client.cache_dir()
Start on 0.13.0 release notes
reactor should just call the local wheel modules,

It does not need to occupy the master workers and auth system
Fix bad ref to delete in wheel key api
comment out for issue #3661
Merge pull request #3678 from seanchannel/develop

comment out for issue #3661
Update the release notes
Add comment about client_acl_blacklist
Merge pull request #3680 from UtahDave/develop

Add comment about client_acl_blacklist