fix testexhibit_should_allow_two_content_items_adding

fix Test_Eukaryotic_Cells_Description
BugFix #674
Merge pull request #750 from yuzhay/timeline

BugFix #674
Merge pull request #727 from dvoits/toursEditor

Tours editor: using new 2 verb API and fixing a bug in the tour playback
Bugfix for #97, minor fix for FeatureActivation module
Merge with master
Fixing failed tests
[BugFix #660] getYMDFromCoordinate() and getCoordinateFromYMD() fixed. Fixed timescale behavior. Fixed unit-tests.
bugfix for 744
Merge pull request #754 from GiorgiyLutidze/bugfix744_2

bugfix for 744
Another bunch of fixes for tests
TracePathToRoot

improving TimelineSubtreeQuery
Merge pull request #753 from MichaelKalygin/bugfix660

[BugFix #660]
Bug #700: Empty collection retrieves default collection content
Merge pull request #755 from javierluraschi/Fix700

Bug #700: Empty collection retrieves default collection content
HotFix: SEO Home Link not working
Merge pull request #758 from javierluraschi/HotFixSeoLinks

HotFix: SEO Links not working
[Test] Fixed test.
Bug 760: Media Items do not render in SEO
Bug #761: Authoring not enabled when URL is not typed case-sensitive