added autoversioning

You can '#include <autoversion.h>' to get a define 'VERSION', then use
something like llOwnerSay(VERSION); to get the version printed.

see bin/getversion.pl for details
added: automatically add licenses to scripts

Thanks goes to Howard Baxton for his request to add the licenses to
the nPose scripts, which inspired the auto-add feature for licenses.

Each script of a project can have its own license added, see
bin/addlicense.pl.

To have a license added, create a file "license" in the project
directory.  For individual scripts, add a file "license-<script-name>"
(without extension).  The contents of the license file will be
prepended to the scripts (*.i and *.o).  The sources are not touched.
adjustment for license adding:

The script name doesn´t need to be in a comment in the first line of
the script anymore for automatic replacement to work.  It can now be
in any line.

It is simpler to change this than it is to make it so that the comment
with the script name remains in the first line when a license is
prepended.  The license should be at the top of the file anyway.