Merge branch 'mnt/suppress_wx_warning' into 'master'

Mnt/suppress wx warning

See merge request fsl/fslpy!94

README.rst

 fslpy
 =====
 
+.. image:: https://img.shields.io/pypi/v/fslpy.svg
+   :target: https://pypi.python.org/pypi/fslpy/
 
-.. image:: https://git.fmrib.ox.ac.uk/fsl/fslpy/badges/master/build.svg
-   :target: https://git.fmrib.ox.ac.uk/fsl/fslpy/commits/master/
+.. image:: https://anaconda.org/conda-forge/fslpy/badges/version.svg
+   :target: https://anaconda.org/conda-forge/fslpy
 
 .. image:: https://zenodo.org/badge/DOI/10.5281/zenodo.1470750.svg
    :target: https://doi.org/10.5281/zenodo.1470750
@@ -11,12 +13,6 @@ fslpy
 .. image:: https://git.fmrib.ox.ac.uk/fsl/fslpy/badges/master/coverage.svg
    :target: https://git.fmrib.ox.ac.uk/fsl/fslpy/commits/master/
 
-.. image:: https://img.shields.io/pypi/v/fslpy.svg
-   :target: https://pypi.python.org/pypi/fslpy/
-
-.. image:: https://anaconda.org/conda-forge/fslpy/badges/version.svg
-   :target: https://anaconda.org/conda-forge/fslpy
-
 
 The ``fslpy`` project is a `FSL <http://fsl.fmrib.ox.ac.uk/fsl/fslwiki/>`_
 programming library written in Python. It is used by `FSLeyes
@@ -68,10 +64,6 @@ not available on PyPI. Change the URL for your specific platform::
     pip install -f https://extras.wxpython.org/wxPython4/extras/linux/gtk2/ubuntu-16.04/ wxpython
 
 
-The ``rtree`` library also assumes that ``libspatialindex`` is installed on
-your system.
-
-
 Once wxPython has been installed, you can simply type the following to install
 the rest of the extra dependencies::
 
@@ -90,6 +82,10 @@ The ``fsl.data.dicom`` module requires the presence of Chris Rorden's
 `dcm2niix <https://github.com/rordenlab/dcm2niix>`_ program.
 
 
+The ``rtree`` library assumes that ``libspatialindex`` is installed on
+your system.
+
+
 Documentation
 -------------
 

fsl/utils/platform.py

@@ -129,7 +129,6 @@ class Platform(notifier.Notifier):
             import wx
             self.__canHaveGui = wx.App.IsDisplayAvailable()
         except ImportError:
-            log.warning('Could not import wx', exc_info=True)
             self.__canHaveGui = False
 
         # If one of the SSH_/VNC environment