added missing optional method parameter 'intersecting'
see
http://fabricjs.com/docs/fabric.Object.html#sendBackwards
http://fabricjs.com/docs/fabric.Object.html#bringForward
Update jasmine.d.ts

https://groups.google.com/forum/#!topic/jasmine-js/LwlC-yCksY4
Merge pull request #2670 from jandersonBB/patch-1

Update jasmine.d.ts
Merge pull request #2665 from nitram509/master

[fabric.js] added missing optional method parameter 'intersecting'