buggy code for 2d pre-computing
think this fixes the interpolation bug
removed execute priveleges
honey collection 2d interpolation

- nectar model from 20110713 version of wanyi's code
- hsurf data files calculated in research/Bees/code/ dir, imported here
added hsurf*.data files
data symboliclink support

Use the data symbolic link to point to
either 128 or 45, depending on which resolution
you want to use in your interpolation for the
honey function.
Merge branch 'precompute_2d_interp' into working
Enable octave compatibility for lsode

- keep matlab compatibility
- include 20-point hsurf data included