GitLab

This commit is intended to makes the license status of Emulab and
ProtoGENI source files more clear.  It replaces license symbols like
"EMULAB-COPYRIGHT" and "GENIPUBLIC-COPYRIGHT" with {{{ }}}-delimited
blocks that contain actual license statements.

This change was driven by the fact that today, most people acquire and
track Emulab and ProtoGENI sources via git.

Before the Emulab source code was kept in git, the Flux Research Group
at the University of Utah would roll distributions by making tar
files.  As part of that process, the Flux Group would replace the
license symbols in the source files with actual license statements.

When the Flux Group moved to git, people outside of the group started
to see the source files with the "unexpanded" symbols.  This meant
that people acquired source files without actual license statements in
them.  All the relevant files had Utah *copyright* statements in them,
but without the expanded *license* statements, the licensing status of
the source files was unclear.

This commit is intended to clear up that confusion.

Most Utah-copyrighted files in the Emulab source tree are distributed
under the terms of the Affero GNU General Public License, version 3
(AGPLv3).

Most Utah-copyrighted files related to ProtoGENI are distributed under
the terms of the GENI Public License, which is a BSD-like open-source
license.

Some Utah-copyrighted files in the Emulab source tree are distributed
under the terms of the GNU Lesser General Public License, version 2.1
(LGPL).

Rationalized some file names: site_*.urls -> *_cases.urls; *normal* become *show* .

Finished adding machinery and data, probed the first 3/4 of the pages with it.

 . Add interspersed action lines to make the {setup,teardown}_forms.list files
   more like scripts, including wget and sql shortcuts.

 . Add undo actions so multiple setup/teardown probes don't collide.  Undo the
   state changes after a probe that *DOESN'T FAIL*, due to ignoring the probe
   value given for the input field.  E.g, the first beginexp that succeeds
   uses up the experiment name and blocks all other probes, so the experiment
   has to be deleted again before the next probe is done.

 . Add a ! prefix for input_values.list lines to skip the input field entirely.

 . Probe both POST input field args, and GET action= args on the same page.

 . Change success/failure lines from text snippets to grep patterns.  Give
   failure matching patterns precedence over success.  Finish categorizing
   probe output pages (needed by the probe undo mechanism.)

 . Add activation and setup/teardown for probing nodetype, osid, and imageid pages.

 . Add analysis of overall success/failure page counts to the probes_msg.