'fsl' is now a namespace package - removed __init__.py. This is so I can use

the fsl namespace in other projects. This breaks python 2 support, but can be
fixed by touching fsl/__init__.py

fsl/__init__.py

-#!/usr/bin/env python
-#
-# __init__.py - The fslpy library.
-#
-# Author: Paul McCarthy <pauldmccarthy@gmail.com>
-#
-"""The :mod:`fsl` package is a library which contains convenience classes
-and functions for use by FSL python tools. It is broadly split into the
-following sub-packages:
-
-.. autosummary::
-
-   fsl.data
-   fsl.utils
-   fsl.scripts
-
-.. note:: The ``fslpy`` version number (currently |version|) is set in a
-          single place - the :mod:`fsl.version` module.
-"""
-
-
-import fsl.version
-
-
-__version__ = fsl.version.__version__
-"""The current ``fslpy`` version number. This information is stored in the
-:mod:`fsl.version` module.
-"""