Add gabor filter function
Fix meshgrid bug in gabor kernel and argument passing
Add test cases for gabor filter
Add example script for gabor filter
Remove unnecessary kernel description for filtering
Add cube selem.
Add ball selem. I verified in 2D that this usage of np.mgrid yields the exact same results as np.meshgrid (np.meshgrid is not available for 3D).
Fix typo in docstring of disk().
Adding octahedron selem (3D equivalent of diamond).
Added test for ball and octahedton selems.

Note that only the center slice (in each dimension is tested)
since there is no reference data available for these selems.
I did visualize the 3D shapes to see whether they look right.
Fix peak_local_max's output for ndarray when indices is set to False
change doc for indices and remove the unnecessarily tolist() operation
Make `exclude_borders` option in peak_local_max nD

Prior modifications to peak_local_max make it nd-aware, but this does
not extend to the exclude_borders option. This commit changes that.
Use range instead of xrange
Merge pull request #1 from jni/peak-local-max-indices-nd

Make `exclude_borders` option in peak_local_max nD
Add test for nD `exclude_border` option
Merge pull request #486 from yangzetian/peak-local-max-indices-nd

Fix peak_local_max's output for ndarray when indices is set to False
Update release instructions for new robots.txt file
Rename sigma parameters by adding an underscore as separator
Fix kernel-size calculation for non-zero theta.