Fix rank filter kernels
Wrap code at 80
Do not use importlib in tifffile_local to avoid warnings
Improved docstring
Beef up docstring
Add tests for all rank filters and reformat code
Increase timeout to install requirements
Set the pip timeout globally for Travis

Conflicts:
	.travis.yml
Merge pull request #1244 from ahojnnes/rank-fix

Fix rank filter kernels
Install simpleitk from wheelhouse if available
Merge pull request #1274 from blink1073/use-wheelhouse-simpleitk

Install simpleitk from wheelhouse if available
Do not try and install SimpleITK on Py3.2 or 3.4
Fix boolean logic for SimpleITK install and add warning
Merge pull request #1272 from blink1073/fix-tifffile-warning

Do not use importlib in `tifffile_local` to avoid warnings
Fix typo in bash conditional
Over and underline alignment
Removed seealso field that was not recognized in gallery example
Merge pull request #1275 from blink1073/use-wheelhouse-simpleitk

Do not try and install SimpleITK on Py3.2 or 3.4
Create a new figure for imshow if there is already data
Prevent travis-try breaks when recreating hard link for PyQt