remove .ruby-version from version control

+ allow developers to use their own specific ruby version
+ ruby version is handled via the gemspec file
initial travis setup
create separate travis rake task
use environment variables or configuration files for setup
update changelog
fix specs
add secure credentials for travis
bugfix: honeybadger and airbrake depended on yml file
bugfix: take destination root into account when checking for files
bugfix: take destination root into account when checking for files
bugfix: remove dependency on rails_connector.yml
include travis build status in readme and add infopark credentials
Rake task that generates an app without running migrations
Allow workspace switch for non admins in development