BEGIN block so that it happens much earlier (before anything is
loaded).  This reduces the overhead to determine that the load is too
high, by a factor of 10.

override credential. New script is less crufty, I think.

Usage: genextendcred -t <days> [-e <days>] -s <slice> [-u <user> | -c <cert>]
       genextendcred -t <days> [-e <days>] -u <user> | -c <cert>
Options:
  -s    - Slice to use. If no user, issue to slice creator.
          In the absence of a slice, the target is the CM, allowing
          the user to extend any of his slivers.
  -u    - Issue to user
  -c    - Issue to user via his public certificate
  -t    - How many days to allow extension for
  -e    - How many days before credential expires; default 5 days

 Note that the renewsliver.py and renewslice.pl test scripts now take
 one of these credentials as an extra argument.

overrides the CM max_sliver_lifetime.

that created a sliver, provided that the user has loaded his private
key and certificate into the browser. Uses shellinbox console code
that I added to the Emulab web interface.

if they do not provide a key.

to the XEN backend. Not worth describing, its terrible.

* Add a .htaccess file that does the rewrites, instead of in the httpd
  confile file. Added Rob's stuff for rewriting urls to hide the .php
  although not sure this is working correctly yet.

* Add simple MyExperiments page so that logged in users can find their
  way back to running profiles.

* Move the DB table holding the running experiment records from the
  geni-sa DB into the main Emulab DB. Lots of little changes for that.

* Change logout to plain link instead of ajax call. That was a silly
  thing to do.

* Bug fixes to ssh keys and shell login from the status page.

without silly hack.

image. Been wanting to do this for a while since the dependency on
copying the contents of the root disk to create an image, has always
been a dubious approach, since there is no consistency over time,
and because it is unclear if the resulting image will boot on a
physical node later (cause of the XEN stuff that is on the disk).

Note to self: Make sure you are testing the version of the code you think you are testing.

Shorter default client_ids will reduce the odds of us running into hostname limitations. Green should now not show until things are actually done according to sliver status.

start of a page to create new profiles, lots of other changes
and additions.

Otherwise, the next user who tries to install into them will be unhappy.