Fixed U4-2842 Umb 6.1.5 - moving a media item from recycle bin / trash
Updates to the media trashed state handling

Tweaked the logic for determining when a media item is trashed or not.
Added unit tests. Removed unnecessary comments.
Merge branch '6.2.0' of https://github.com/umbraco/Umbraco-CMS into 6.2.0
Removing unwanted ToList()
Merge branch '6.2.0' of https://github.com/sniffdk/Umbraco-CMS into sniffdk-6.2.0

Conflicts:
	src/Umbraco.Tests/Umbraco.Tests.csproj
modified media service tests to not have to create data in teh base tests