State of symlink support:
detect symlink-capable filesystems
check in files with symlinks
check out files with symlinks
remember symlink state on non-symlink-capable filesystems
Needs to be done:
- deal with interesting merge cases (file and link)
- display symlink info in manifest, hgweb, etc.
To be considered:
- add option to follow (resolve) symlinks (this would be very useful)
