Bump version to 0.6.1
Fix broken test
Few style updates for consistency
Add missing spec suite deps to Gemfile
Group logging related options in omega.yml
Add small comment to Rakefile
Fix a few broken specs
Follow up fixes missing from last commits
Remove trailing whitespace in bin,lib,spec dirs

Command used: find <dir> -print0 |xargs -0 perl -pi -e 's/ +$//'
Add nico to authors list
Small README style fix