bundle update including new rails version
the public flag no longer exists
now using kaminari for paging

- DRY
- removes a lots of complexity
bundle update
a lot of reformatting
implemented editing for messages
added missing localization
fix: DRY, do not write the smae function again and again
fix: do not fail when faye isn't started
deleted unused route
avoid calling gsub! w/o parens to avoid warnings
new stylesheet for syntax highlighting