Merge pull request #17 from progress-engine/comments-index

Comments index
+ is_free task filter
Merge branch 'master' of github.com:progress-engine/volunteer
i227 + task columns limit
i231 + user columns limit
remove i18n fallback
improve registration form
created Page resource
pages layout
active_admin resource
rake task to generate static pages
render links to static pages
replaced background
Merge pull request #18 from progress-engine/i175-static-pages

Static pages
fixed thumbs on homepage
hide page's slug field in form
Merge branch 'master' of github.com:progress-engine/volunteer
fix locale init
+ new message link to use profile
Merge pull request #19 from progress-engine/i165

I165