Make prepare-cmsdist work with git.
New upload also works for comp.
Merge pull request #9 from cms-sw/allow-new-uploads-in-comp-16

New upload also works for comp.
Backport fixes from V00-2X-YZ series.

* Reuse contents of WEB, where possible.
* Calculate hash on the server, rather than on the client.
* Move temporary directories to .delme when done.
Print out a sensible message if apt-cache showpkg output is malformed.
Make sure no more than 4 rsync commands are running before starting a new
one...
Print-out message.
No need for --progress!!!
Misc backports from V00-2X-YY.

- Documentation.
- build_rpm.sh fixes.
Merge pull request #20 from ktf/V00-16-XX

Misc backports from V00-2X-YY.
use cmspm from pkgtools; use of cms-sparse-checkout instead of checkdep