copy: handle rename internally
- add rename parameter
- don't collect copied list
- report "moving" rather than "copying"
- remove renamed files
- don't return copied list
- simplify callers
requesting all changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
1 files, 1 changesets, 1 total revisions