Added a few markers other than circle from d3.svg.symol
merged in latest changes
test module
merged with master at github
Removed TODO
removed multipe marke mapings to same shape and added warning for unmapped marker shapes
shortened lines to compy with PEP8
formatting tweak
Merged latest changes from jakevdp/mpld3
Cleaning up long lines and unneded code
mergeing changes from jakevdp/mpld3
Merge pull request #4 from jmeppley/master

Added d3 shapes to support some matplotlib markers