jQuery 1.5.1

[orslumen]

Some fixes were needed to get jQuery 1.5.1 working with EnvJs in Ruby Racer:

i) The jQuery.clone method uses an expando attribute that is removed in jQeury.cloneFixAttributes. But that attribute may not be present on the current node. If doc.implementation.errorChecking === false it should fail silently, see NamedNodeMap#removeNamedItem(NS).

ii) jQuery directly retrieves and sets the value attribute on the nodes, but (at least in Ruby Racer) the NamedNodeMap does not accept a call to value=. To fix this, explicit getter and setters are added, see NamedNodeMap#get/set value

iii) jQeury.cloneFixAttributes makes use of Element.clearAttributes and Element.mergeAttributes. Both methods were not defined yet.

The code changes I used to get jQuery 1.5.1 working can be found in orslumen@c3e702c

[vanm]

@orslumen Thanks for publishing these fixes. If you haven't created a pull request already, it would be great to get these pulled back into envjs master.