Fetch command now can handle Ctrl+C/Break key
Allow interrupt branch initialization
Fetch show message at the begging (help when fetch a lot of changesets)
Init branch support cancellation

squash! Init branch support cancellation
FindMergeChangesetParent support CancellationToken
InitBranch crash on GetRootChangesetForBranch exception fixed
GetRootChangesetForBranch shouldn't download changes, because we use only ChangesetId
nofetch parameter in documentation fixed
Clone support cancellation token
Retry on timeout
Ignore error if we can't update file.

Out repository contain file with name "aux" that TFS cannot create on disk.