added mviz concept and index.html to show.
added grouping by color, logarithmic scale.
added legend, fixed up minor things.
added logline output to console.
to_json takes an optional list of attributes that it will include in the output.
to_json takes an optional list of attributes that it will include in the output.
mlogviz fixed more bugs, good working state now.
removed mviz.
renamed to mlogvis. added dynamic port binding.
changed order of imports (cosmetic)
json doc to index.html is now a full document with plot type, not an array anymore.
docstring changes.
Merge branch 'd3_vis'