0.6.0

• Add all-contributors to README
• Replace jscs and jshint with eslint
• Add code lint autofix using prettier
• Fix global doubleClicked event not firing
• Fix double click function not firing for p5.Element
• Updates to param validation
• Added karma benchmarking
• Enable self-hosting yui docs
• Improvements to yuidocs and reference
• Make 'rotate' default to Z-axis
• Improvements to p5.Vector
• WEBGL lighting updates
• Adding custom shader support
• Clarify gruntfile