Update README.md
Draw dot if there are not enough points to draw a curve.
Fix drawing Bezier curve.

This causes huge performance regression on Chrome on Mac.
Allow to draw dot when using mouse as well.
Optimize drawing of Bézier curves.

Use approximated length of a curve as number of draw steps.
Remove tabs
Update README.md
Add copyright notice
Add usage section to README
Optimize performance by batching draw calls. Closes #8.
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Add SignaturePad#fromDataURL method. Closes #14.
Update README.md with #fromDataURL example
Add SignaturePad#isEmpty() function. Closes #16.
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Update README.md
Add section about handling data URIs to README
Allow to set velocity filter weight, color, max and min widths via options. Closes #15.
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Release 1.0.0. Add Grunt and minified version.