minor changes in the stylesheet
options showIndent property renamed to showIndentation
selection emits started and canceled events
moved getTextAtLine function from the Data
removed prepare function (not used for a long time)
added setFontSize function
added foreach method to the Data.prototype
fixed Data.prototype.toString()
changes in the CodePrinter constructor
Data init has been moved into CodePrinter.prototype
added functions to insert node to the DOM
tab character is now stored as '\t' but displayed as spaces
added setTabWidth method
added setMode method
added eachCharacter function to the Caret.prototype
added tracking and brackets highlighting
don't highlight active line when selection isset
changes css .cp-highlight rules
added Overlay class
changes in the CodePrinter constructor