Fixing the incorrect isNaN example in the [specialvalues] section

I changed the 5 / "5" isNaN example because it results in 1 as javascript coerces the string into a number before dividing. Instead, 0 / 0 should be used since it will result in NaN.
Merge branch 'live-docs' into dev-master
Merge branch 'dev-master' into dev-3.x
Whitelist cut, copy, paste events for YUI Nodes
Merge remote-tracking branch 'jetguy/patch-2' into dev-master
Merge remote-tracking branch 'upstream/dev-master' into dev-master
Commit build files for node-base.
Merge branch 'dev-master' into dev-3.x