BUGFIX: fix for #713 - now user search header paths are set in YouTube and YouTube SDK targets
added "Resources - ShareKit Library" for easier adding of 3rd party sdk's resources (xibs, images, etc)
BUG FIX: fix for #710 - public uploads

Public sharing on YouTube sharer was not working because even though the
UI showed "public" as the default setting, it was not actually set
Merge pull request #717 from PUDRESCU/master

BUG FIX: Issue #710 Public share on YouTube sharer