Add app type, severity and user information
Change function name
Warden working and better test logging
Fix tests
Simplify user tab
Merge pull request #71 from bugsnag/user-details

Add app type, severity and user information
Update changelog and readme
Version bump to 1.7.0
Regenerate gemspec for version 1.7.0
Document app type
Merge branch 'master' of https://github.com/bugsnag/bugsnag-ruby