Smoother handling of arguments error
Merge pull request #9 from miska/master

Smoother handling of arguments error
Fix coding signature for 'utf-8' (PEP 0263)
Fix parameter opts for _get_changed
More fixes in opts params
Dest parameter correct by default
Merge pull request #10 from aplanas/master

Looks ok
installation-images got renamed
correctly expand the revision in rqlink
the ring projects are renamed

And we don't care for Rings higher than 1 atm
Nice titles for staging projects
remove the prosa from the staging title
Merge pull request #12 from coolo/master

  several commits collected
simplify rqlink usage by offering osc staging select LETTER REQUESTS...
Merge pull request #13 from coolo/have_select

simplify rqlink usage by offering osc staging select LETTER REQUESTS...
Remove some superfluous code
Extract StagingApi class from osc-staging
Update documentation about plugin installation
Integrate coolo's changes in StagingApi class
Move StaginAPI into a module. Fix tests.