Merge pull request #4 from gertvv/bower

Fix bug with single preference statement
return error code instead of redirect
Fix bower branch reference
Merge commit '6a3fa6e2a540f32c917c738dc7ad014aa0cd9ff3' into develop
Merge branch 'develop' of github.com:drugis/mcda-elicitation-web into develop
Fix .gitignore
(cherry picked from commit 2961107)
add test for errorHandler
(cherry picked from commit cde5887)
show error message  + test
(cherry picked from commit 2cb59f2)
Merge branch 'develop' of github.com:ConnorStroomberg/mcda-elicitation-web into develop
Fix jslider in app-remote
Fix #53: redirect after chooseProblem

 - the code that passed workspaceId and scenarioId to the redirect had
   been removed (???)