Merge pull request #1 from matthewoliver/master

Add weight edge tracking to logflow
made the count label more clear
updated sample images to reflect new code
fixed setting the widths of the graph edges
Added colour to the edges

When the graph gets too big, it is hard to track lines.
This patch randomly assigns a colour to each line.

The random colour picker picks RGB ranges from 0-200 as
255 (FF) is too light.