WIP user guide for promises and example stubs
First draft of Promise user guide complete
Good enough to ship. Needs examples, diagrams, and editing
Fix `Y.clone()` to quit early when trying to clone DOM nodes

This moves `Y.clone()`'s early return for DOM nodes above the call to
`Y.Object()`, and fixes the issue where DOM nodes cannot be cloned in
Firefox or IE.
Format Handlebars README
Update Handlebars' Gruntfile to work with Handlebars @ v1.0.10
Removes "BEGIN/END(BROWSER)" comments from imported Handlebars source
Tweak Handlebars Gruntfile more to make it smaller and more efficient
Add notes about why we don't `Y.clone()` DOM nodes
Wrangle Y.Clone's `var`s
Remove examples from component.json until arrival
Merge branch 'promise-docs' of git://github.com/lsmith/yui3 into lsmith-promise-docs
Merge branch 'live-docs' into dev-master
Merge branch 'handlebars-grunt' into dev-master
Build Handlebars with updated Gruntfile
Build for Gallery bump
Merge branch 'dev-master' into dev-3.x
Merge branch 'clone-node-fix' into dev-3.x
Build oop
Build simpleyui