progress report errors no longer fail without an error code
Automatic commit of package [pulp-rpm] release [2.5.0-0.11.beta].
Merge the Sphinx projects into one.
Merge branch 'merge_docs'

Conflicts:
	docs/tech-reference/conf.py
Merge pull request #585 from asmacdo/flexible-progress-report-errors

progress report errors no longer fail without an error code
1151490 - Repo group publish  fails with NoneType error

https://bugzilla.redhat.com/show_bug.cgi?id=1151490
If optional keys in the config are not specified then by default they are None
(except http/https).Validate_export_config() was not checking whether export_dir
(optional key) is None, and this led to the error when repo group publish was done
via pulp-admin.
Merge branch '1151490'
Merge branch '2.5-testing' into 2.5-dev
Merge branch '2.5-dev'
Automatic commit of package [pulp-rpm] release [2.5.0-0.12.beta].
Merge changelogs.
Merge branch '2.5-testing' into 2.5-dev
Merge branch '2.5-dev'
Automatic commit of package [pulp-rpm] release [2.5.0-0.13.beta].
Automatic commit of package [pulp-rpm] release [2.5.0-0.14.beta].
Revert "Merge changelogs."

This reverts commit 986f98b476c5bd1c6a76bfc325236574c1eabdf1.
Automatic commit of package [pulp-rpm] release [2.5.0-0.13.beta].
Automatic commit of package [pulp-rpm] release [2.5.0-0.14.beta].
Merge remote-tracking branch 'origin/2.5-testing' into 2.5-dev
Merge remote-tracking branch 'origin/2.5-dev'