add tokyo railway example json to docs
manual style example
gulp docsrebuild target; allow slimerjs docs img gen; add tokyo rail demo; etc
cy.renderTo() uses viewport extent performance enhancement #675
fix readme
 Pixel ratio should be 1 by default for performance reasons #677
Mappers not updated after ele.data() (i.e. w/o context change) #678
 Mappers should be forbidden in bypasses like ele.css() #679
improve cy.load() docs
prepare for 2.3.2 release
disable tokyo example for now
output of cy.json() includes deleted classes #681
prepare for 2.3.3 release
briefer descr
 Tap on graph should blur active element manually #683
 Motion blur should be on by default #684
Revert " Tap on graph should blur active element manually #683"

This reverts commit b9f98c7b59385eced1895be4dcab073f37b51424.
CanvasRenderingContext2D.setLineDash() method does not exist in Linux Firefox 24 #686
 Safari 7.1 mangles control point calculations #688
#688 fix should only apply to beziers