- Update to 0.24


git-svn-id: svn+ssh://svn.freebsd.org/ports/head@367321 35697150-7ecd-e111-bb59-0022644237b5
- Correct where SAGE_ROOT was incorrectly prefixed by STAGEDIR in
  ${PREFIX}/bin/sage.
- Bump portrevision.

Pointed out by:	Robert.Burmeister@UToledo.edu


git-svn-id: svn+ssh://svn.freebsd.org/ports/head@367322 35697150-7ecd-e111-bb59-0022644237b5