Merge pull request #33 from igagen/global-alpha

Fix setGlobalAlpha

Merge pull request #32 from igagen/patterns

Add Blend Modes and Canonical Show instances for Enumerations

Merge pull request #31 from igagen/patterns

Add createPattern, setPatternFillStyle to Graphics.Canvas

Update README.md

Update docs

Merge pull request #27 from jotrk/master

Fix compiler warnings

Merge pull request #26 from izgzhen/master

add withImage

Merge pull request #25 from jasonzoladz/feature-beziercurves

Added Bézier curves.

Merge pull request #24 from jasonzoladz/feature-canvasgradient

Added CanvasGradient API

Merge pull request #21 from puffnfresh/feature/drawimage

Add full drawImage API