BF - fix version number get for numpy distutils

The comments in setup.py suggest this version number may only be used
for debugging. As written the code obviously has not worked for some
time.
FIX: slice_order can take in list
Merge branch 'master' of github.com:nipy/nipy into fmrirealign4d
Merge pull request #133 from akeshavan/fmrirealign4d

FIX: FmriRealign4d can take slice order as list
DOC+TST - docstrings and tests for Image4d object

Test slice time order parameter init for Image4d object
RF - use relative imports in kernel_smooth tests
TST - basic smoke test for kernel smooth
BF+TST - fix shape error for kernel_smooth

kernal smooth was using the wrong (input) coordmap size to reshape the
real points kernel array.  Fix plus tests for behavior with and without
rotation.
cosmit in graph/field
COSMIT: variable renaming in graph
Merge pull request #134 from matthew-brett/image4d-slice-tests

DOC+TST - docstrings and tests for Image4d object
Significant speed up in hroi merge
Significant speed up in bifurcations code
BUG viz: tentative fix for switched labels
ENH: A bit of cleaning in the watershed/blobs examples
BUG viz: fix more x/y inversions
Merge branch 'gael-master' of github.com:GaelVaroquaux/nipy into gael-master
cosmit
DOC: add commit codes listing

with example commit message and some explanation.
DOC: update codes from feedback

NF -> ENH.  Remove PL in favor of STY.  Add WIP and comment on using WIP
for pull request comments.