"their is" -> "there is"
BF: fixed the dtype issue by forcing the type to np.float64
COSMIT: Cleaned test_field
COSMIT: a pass on test_graph
ENH: Avoid the systematic casting to np.float64 in dilation function
ENH: update docstring and remove one copy
NF: make SPM processing example for Open FMRI ds107

Example of how to batch script SPM5 (!) preprocessing for the Open FMRI ds107
dataset.
BF Fixed the case of empty set of regions in bsa -- to be further checked
A pass on bsa module: simplifications, redundancy removal, more explicit variable naming
More changes in related modules: variable naming, API
More variable renaming and simplifications
Proceed with updates of the Functional landmark stuff
NF: add script to build dmg files from buildbots

The buildbots build mpkgs; this script builds dmgs from the mpkgs and
sets the permissions correctly.
NF: add tool for doctest for extensions

Fetched from the dipy/tools directory.
Further simplifications on the landmark learning structure
Simplified again the landmark API
DOC: tiny changes in release notes

That I missed somehow.
DOC: fix typo; change dipy to nipy

From comments by Bertrand
DOC: point to newer function for rolling axes

We were pointing to the old deprecated function.
RF: add time and slice axes arguments to screens

The ``screens`` utility assumed time last and slice second-to-last. Get
screens to look for 't' axis (will nearly always be last, but often
set), or accept suggestion from arguments; ditto for slice axis.