Use escape sequences.
Merge pull request #31 from tkihira/hbono/use-escape

Use escape sequences.
Add DisplayNode.setSize() to prevent applications from changing the shape directly.
Merge pull request #32 from tkihira/hbono/add-setsize

Add DisplayNode.setSize()
Merge branch 'develop' of https://github.com/tkihira/Tombo.js into hbono/use-webgl
Fill a mapping table from a composite opration to a blend opration.