Python2 'Queue' instead of 'queue'

[Morgan243]

The queue module in is capitalized for Python2, but lower case for Python3, see docs. I've replaced imports in my own code with something like the following:

try:
    from queue import Queue
except:
    from Queue import Queue

It seems like this project is aiming to support both Python 2 & 3, so this should be fixed unless I'm mistaken. I can push a commit to fix if need be.

[ghost]

That would be great.

[ghost]

Thanks!