Make a start on the updated release notes.
Put units in docs for MS_effective_splitting_N

Hz, seconds and degrees.
Import files from external working dir

These are the scripts used to do the D''
topotaxy work.
Update comments for topotaxy example
Update relase notes for this branch
Allow contour bounds to be set in MS_sphere
Added files
Functional prototype
Apparently working prototype with tests
Symmetrical mode.

- Added a symmetrical misfit mode. This runs the lam2 misfit process with the two
  operators in both directions, and takes the average misfit of the two.
Initiated a splitting misfit example.
First stab at effective splitting using wavelet

Use [fast tlag] = MS_effective_splitting_N(0.1, ...
 55.0, [55.0 10.0], [1.0 1.0], 'mode', 'gaussianwavelet')
to do effective splitting calcualtion using this new
method.
Add tests, unwind output

Make the output consistent with the S&S method. Add tests
following some of those from S&S. Note that in three cases
(tests commented out) the result is a few degrees different.
Shows up more for longer periods. Is this close to a faliure
mode for S&S or is something wrong with the wavelets?
Remove some code duplication from new functions

And tidy up the comments.
Move splitting measurment into seperate function
Teach the split_model about new eff split mode

Add optional arguments:

* split_model("mode", eff_split_mode) where eff_split_mode is a
  string passed into the mode argument of MS_effective_splitting_N.
  Note that setting this to 'GaussianWavelet' results in a much
  longer execution time for the example and the remaining options
  can be used to limit this.
* split_model("min_azi", min_azi) the minimum azimuth considered for
  the calculation (default 0 degrees).
* split_model("max_azi", max_azi) the maximum azimuth considered for
  the calculation (default 360 degrees).
* split_model("del_azi", del_azi) the azimuthal spacing used for the
  calculation (default 1 degree).
Seperae and tidy up trace plotting functions

This merges the final common functions from
MS_effective_splitting_N and MS_splitting_misfit
and provides a framework for plotting 'traces'
used for some splitting calculations.
Merge pull request #11 from andreww/topotaxy_example

Topotaxy example
Merge branch 'splitting' of ssh://majorite/geophysics/walker/git-repos/msat