pgsql: One of the web pages mentioned in dmetaphone.c has moved.

Log Message:
-----------
One of the web pages mentioned in dmetaphone.c has moved.  Also fix
a few typos in comments.

The dictionaries I checked list "altho" as a variant of "although,"
but I didn't find any other instances of the former in the source
tree so I changed it.

Michael Fuhr

Modified Files:
--------------
    pgsql/contrib/fuzzystrmatch:
        dmetaphone.c (r1.4 -> r1.5)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/contrib/fuzzystrmatch/dmetaphone.c.diff?r1=1.4&r2=1.5)
        fuzzystrmatch.c (r1.15 -> r1.16)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/contrib/fuzzystrmatch/fuzzystrmatch.c.diff?r1=1.15&r2=1.16)