scikit-image/scikit-image — pull request #910 by cgohlke (2014-03-11 05:51:55+00:00)
Title: Use os.pathsep to sepatate multiple ImageCollection load_pattern

The colon `:` does not work on Windows as it can be part of a path.

Fixes the following test error on Windows:
```
======================================================================
ERROR: test_null.test_null_imread_collection
----------------------------------------------------------------------
Traceback (most recent call last):
File "X:\Python34\lib\site-packages\nose\case.py", line 198, in runTest
self.test(*self.arg)
File "X:\Python34\lib\site-packages\nose\tools\nontrivial.py", line 60, in newfunc
func(*arg, **kw)
File "X:\Python34\lib\site-packages\skimage\io\tests\test_null.py", line 45, in test_null_imread_collection
collection[0]
File "X:\Python34\lib\site-packages\skimage\io\collection.py", line 355, in __getitem__
n = self._check_imgnum(n)
File "X:\Python34\lib\site-packages\skimage\io\collection.py", line 389, in _check_imgnum
% num)
IndexError: There are only 0 images in the collection
```