[Caja] Re: Adds some table manipulation methods that were missing.

[mikesamuel]

http://codereview.appspot.com/98051/diff/1/2
File src/com/google/caja/plugin/domita.js (right):

http://codereview.appspot.com/98051/diff/1/2#newcode2586
Line 2586: return defaultTameNode(this.node___.insertCell(0 + index),
this.editable___);
What do you want (0 + index) to do?
It definitely does not guarantee that the result is an integer or that
it is in a sensible range.

http://codereview.appspot.com/98051/diff/1/2#newcode2627
Line 2627: if (!this.editable___) { throw new Error(NOT_EDITABLE); }
Why are create methods contingent on editability?

http://codereview.appspot.com/98051