Add authorization for channels; initial implementation is such that only administrators may delete channels. (refs #131, #154)
Don't render delete button unless channel metadata contains trueish destroyable flage.
Introduce channel ownership; delete button only displayed for destroyable channels (non-primary, owned, or all except primary channel if you're an admin).
Channels now need a user.
Remove obsolete additional attribute for channel JSON.
Add users_controller and set as show/index resource in routes.
fix abilities for channel ownership
Better user handling; better initialization callbacks.
Increase capybara wait time to 10s for locating .chat-input.
Slight refactoring; added comments about what is going on. :)
Updates kandan-count and kandan-count-dev

- Update kandan-count-* gems
- Closes #227
Merge pull request #228 from gabceb/kandan-227

Updates kandan-count and kandan-count-dev
Updated gems

- Updated Rails to 3.2.13
- Updated other outdated gems
Merge pull request #230 from gabceb/kandan-229

Updated gems
About page opens in a new page
All links on header menu open in new tabs now
Merge pull request #235 from gabceb/kandan-234

Open About page on a new tab
Use #create! to ensure channel creation fails noisily if it doesn't validate correctly; ensure the primary channel is assigned to the primary user.
Merge pull request #223 from mjtko/kandan-131

Add ownership to channels and associated enhancements
Update instructions for deploying to Heroku

Heroku no longer uses a gem, so update verbiage appropriately.
Also: the default stack is now cedar, so the option is not needed.