fix typo in travis configuration
change test run procedure
Fix test script command
Change base requirements
Add Sauce setup for testing GUI
add env variables
get rid of rackup
Merge branch `dev`
Secured travis env variables
Add secured sauce labs addon access key
Merge dev into ci
Add flash messages on events. Enhance pagination layout: get rid of horizontal line
Add search field and page with search results (not ajax so far). Enhance flash messages system. Change user layout in top right corner.
Merge branch `dev`
Add deploy to heroku using Travis CI
Merge branch `dev`