Passing unicode URL to load_image_url raises exception

[LeeKamentsky]

Traceback (most recent call last):
File "C:\Users\leek\cpdev\javabridge\CellProfiler\cellprofiler\gui\cpfigure.py", line 1764, in show_image
image = load_image_url(url)
File "c:\Python27\lib\site-packages\bioformats\formatreader.py", line 523, in load_using_bioformats_url
with ImageReader(url=url) as rdr:
File "c:\Python27\lib\site-packages\bioformats\formatreader.py", line 548, in init
path = unicode(utf8_url, 'utf-8')
TypeError: decoding Unicode is not supported