Renamed GIT repo at SF for the nl2sql script

Had tried several different replacement names for the nl2sql Perl script, but after rewriting it as the Perl Module FTN::Database with an associated script, have renamed it to ftn-database.git:

• http://ftnpl.git.sourceforge.net/git/gitweb.cgi?p=ftnpl/ftn-database.git;a=summary

Note that the nl2sql script by itself is still in the repository on a separate branch named nl2sql;

• http://ftnpl.git.sourceforge.net/git/gitweb.cgi?p=ftnpl/ftn-database.git;a=shortlog;h=refs/heads/nl2sql