fixed to work with documented example and run on windows.


The example application in the README didn't work when I tried. Part of the library was look for galleries in  /content another part was looking for them in  /public/content.  This created strange behavior

I think this may have been a bug, or an error in the documentation.
Updated library, tests, and README

Few changes to work on Windows.   Please test on Mac/Linux before making pull request.

Please provide feedback. This my first pull request and contribution to someone elses project.