merge branches

Fix tour tests
Add test for bing search (images)
Add UI test for video and pdf bing search
Fix bing image search test
Add Skydrive mediapicker feature activation.
Implement SkyDrive mediapicker.
Merge branch 'BingSearchTests' of https://github.com/v-avdeev/ChronoZoom
Merge pull request #960 from a-chumagin/master

Bing search tests