base_url is now set properly in the subprocess worker

parallelized runs were all using the same appliance. woops. :)
Various updates & fixes

add checking for existing image for rhos

fix vsphere template check

fix rhevm locked template

update rhevm cleanup, delete ova files

indent

remove wait for deleted VM
Fixed nested namespace tests
Do not mess up tests when events disabled
Merge pull request #838 from psav/fix_nested

Fixed nested namespace tests
Add BZ issue links to tests
Merge pull request #840 from jkrocil/add-bz-links

Add BZ issue links to tests
Merge pull request #839 from mfalesni/donotsetupeventswhenwedonotwantto

Do not mess up tests when events disabled
Merge pull request #835 from apagac/template_updates

Template upload: various updates & fixes
Fix BZ comment
Merge pull request #841 from jkrocil/bz-comment-fix

Fix BZ comment
--collect-only works with parallelized tests

Added a new slave event: message. Accepts a message kwarg and
routes the message through the dist reporter including node id
Merge pull request #834 from seandst/paralloops

base_url is now set properly in the subprocess worker
Artifactor makes its own log dir
Merge pull request #842 from seandst/artifactor-log-dir

Artifactor makes its own log dir
For permission tests with one perm, there is no menu so don't try to navigate.
Added Tag and Category objects
Added tests for Tag and Category

Added randomize for lowercase to make it clear it's needed
Added tag infrastructure tests

Modified Table to allow partial matching
Added Edit Tag mixin