Changes for release 0.4 (pending):

- Added the VectorUtils class.
- Added the Slice and SubVectorF classes.
- Added the SimpleVectorF class.
- Added the sci.interp package with some interpolation interfaces
  and classes.
- Added more methods to MatrixUtils.
- Added more methods to SciUtils.
- Added new constructors to SimpleMatrixF and FortranMatrixF.
- Fixed an error in the SciUtils set methods.
- Used SimpleVectorF to simplify SimpleMatrixF and FortranMatrixF.


Changes for release 0.3: 

- Added more methods to SciUtils.
- Moved to the subversion repository. (0.3.1)

