client egg/wheel build tag
compute: remove arast_url dep in conf
compute remove default.queue dep in conf
garbage collection
GC use config values
Merge pull request #227 from kbase/cb

Garbage collection
GC remove empty dirs
GC current job checks
Merge pull request #228 from kbase/cb

GC fixes
new version 0.5.5
Merge branch '0.5.5' into ff