[DD] : Creation of YUI config.
[DD] : Addition of YUI config to example pages.
[DD] : Mock YQL module.
[DD] : Removal of defunct Wired feed.
[dd-ddm] : Fix #1492 regression "Drop Based Coding"

At ~ 3.7.3 a regression was introduced by 1a55a78 that broke
"Drop Based Coding" by using Array.each() for otherDrops which
is an Object Literal.
[dd-ddm] : Fix #1492 (build files)
[core] Add tests for conditionally loaded ES modules
[core] Support conditionally loaded ES modules
[core] Fix API docs for Y.require()
[core] require: use Y.Array when it is known to be available
[dd-ddm] : Fix #1492 regression "Drop Based Coding"

Include @okuryu's suggestions. Thanks!
[dd-ddm] : Fix #1492 (build files)
Finishing the removal of scoped from style blocks started in pr#1577
Merge branch 'dev-master' into dev-3.x
Merge branch 'dd-mock' into dev-master
Merge remote-tracking branch 'hacklschorsch/bug_1492' into dev-master
[dd] Update the history
Merge branch 'dev-master' into dev-3.x
[core] Rewrite tests for new Y.require()
[core] Y.require, YUI-style

Instead of passing multiple arguments to the callback, now we keep the Y
and pass a second parameter with all the ES6 imported modules