heatmap.js v2.0 oss

If you like heatmap.js v2.0 please consider donating an amount of your choice. This will help keeping the project running!

Your support is greatly appreciated.

If you don't want to donate you can still get the repository on github: https://github.com/pa7/heatmap.js

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Also, this is an experiment about how to finance open source projects. If you don't like it, please let me know!  ( @patrickwied  on twitter )