added method new_from_short_name
added test for new_from_short_name
simplified %short_name hash
use same indentation as original file
look for the header before the license body
update FreeBSD not to hardcode FreeBSD!
S::L::BSD.pm: fix reference to REGENTS as software copyright holders
S::L::BSD.pm: link to BSD 3-Clause, not BSD 2-Clause, url
changelog for last few changes
v0.103008

        - faster!  thanks, charsbar!
        - add new_from_short_name to LicenseUtils for spdx.org-style
          short names; thanks, Dominique Dumont!
        - avoid double trailing dots in expanded licenses; thanks, Dave Rolsky!
        - fix some errors in (3-clause) BSD license text
        - the 2-clause BSD ("FreeBSD") license no longer incorrectly puts
          "FreeBSD" as the owner in the license full text