update active admin repo
update Gemfile.lock
Merge pull request #424 from timoschilling/patch-1

update active admin repo
Bump puppet-hackenin spec to 1.0.2

Lets see if this will fix hacken-in/puppet-hackenin#3
Added new logo, closes #425
Added Logo to the page and added disclaimer in imprint
Merge pull request #427 from hacken-in/new-logo

Added new logo, closes #425
Integrated Bugsnag