fix testexhibit_should_allow_two_content_items_adding

fix Test_Eukaryotic_Cells_Description
TracePathToRoot

improving TimelineSubtreeQuery
Merge branch 'master' of https://github.com/alterm4nn/ChronoZoom
Bug #699 Fixes + Root Collection url fix

SEO: Collection root is too empty which causes Bing to throw a SEO Analyzer error.
Root plus all pages without a guid now so the content from the root timeline to the crawler.

Cleaned up the way titles are printed to the crawler.
included test for searching
Revert "included test for searching"

This reverts commit 2767853d365256355365e243a265ae3227bec947.
Merge pull request #756 from yl790/master

Revising TimelineSubtreeQuery
Merge pull request #767 from a-chumagin/master

	fix testexhibit_should_allow_two_content_items_adding
included test for searching
Merge pull request #764 from xanthics/master

#699 SEO: Collection root is too empty which causes Bing to throw a SEO Analyzer error
Merge pull request #768 from a-chumagin/master

included test for searching