Merge remote-tracking branch 'upstream/master'
cleanup code
set test url http://test.chronozoomproject.org
added new class for search tests
added initialize and cleanup
added class SearchHelper
added class SearchHelper to HelperManager
added test for Timeline Search
ignored WelcomeScreenTests according to https://github.com/alterm4nn/ChronoZoom/issues/317
added test for timeline search
added test for exhibit search
Merge branch 'master' of https://github.com/alterm4nn/ChronoZoom
added test for artifact search
deleted unsued method CloseWelcomePopup
reject using navigationHelper in Tests
fix: create timeline
Welcome screen: Start button behavior fixed (#317)
Merge pull request #357 from alterm4nn/CorrectStartButton

[Bugfix] Welcome screen: Start button behavior fixed (#317)
fix: create timeline
Merge pull request #358 from sergey-berezin/master

Creating a default timeline for a new collection