Taxonomy test add and delete, plus bug fix
Additional checks in test
Add test for version of ImportTermSet() with GUID syntax
Add term set import to taxonomy field scenarios
Change links to samples to be meaningful (avoid "click here")
Publishing feature is used in Page tests, so use a different feature for the Feature tests
Bug fix - only check current properties if changes passed in (was breaking for files not in a library)
Bug fix - theme background image property typo on get
Bug fix - email address not always set; EnsureUser() appears the most reliable
Merge remote-tracking branch 'contributor/taxonomy' into pr242
Merging of pr242