MAINT: Set up versioneer

Author: effigies

.gitattributes

@@ -1 +1,2 @@
 nibabel/COMMIT_INFO.txt export-subst
+nibabel/_version.py export-subst

MANIFEST.in

@@ -10,3 +10,5 @@ recursive-include nibabel/externals/tests/data *
 recursive-include nibabel/nicom/tests/data *
 recursive-include nibabel/gifti/tests/data *
 include nibabel/COMMIT_INFO.txt
+include versioneer.py
+include nibabel/_version.py

nibabel/__init__.py

@@ -9,7 +9,11 @@
 
 import os
 
-from .info import __version__, long_description as __doc__
+from ._version import get_versions
+__version__ = get_versions()['version']
+del get_versions
+
+from .info import long_description as __doc__
 __doc__ += """
 Quickstart
 ==========