Change version number (back) to 7.4.3.x (7.4.3.1) until ready for public release of 7.4.4
Change version number (back) to 7.4.3.x (7.4.3.1) until ready for public release of 7.4.4

git-svn-id: 77c6ae948ca0f9b1480c5330e5e23bcf0afa938f@25635 fdbf22ae-c210-0410-be80-ca943da6b8f8

NOAA-PMEL/PyFerret,NOAA-PMEL/PyFerret,NOAA-PMEL/PyFerret,NOAA-PMEL/PyFerret,NOAA-PMEL/PyFerret