Version 0.3.0

Enhancements

• Ability to zoom category axes #39 Thanks @QuantumBob
• Panning of category axes #33 Thanks @QuantumBob

Issues Fixed

• Prevent page scrolling on mousewheel #36 Thanks @johnvarv
• Check if options.zoom exists before reading #44 Thanks @gormanb
• Add link to live demo in readme #47 Thanks @zachpanz88
• Fixed drag-zoom when canvas has margins / padding #38 Thanks @Skuhoo and @niutski