Seed and Loader build
Seed Build
Move duplicat CSS to core.
Merge branch 'dev-master' of github.com:yui/yui3 into dt-2531914
Merge branch 'dev-master' of github.com:yui/yui3 into dt-2532825
Merge branch 'io-custom-transport' of git://github.com/jafl/yui3 into jafl-io-custom-transport
Update IO's change history.
Merge branch 'jafl-io-custom-transport' into dev-master
Merge branch 'live-docs' into dev-master
Merge branch 'master' of git://github.com/clanceyp/yui3 into clanceyp-master

Conflicts:
	src/datatable/HISTORY.md
Build DataTable.Sortable.
Merge branch 'clanceyp-master' into dev-master
Merge branch 'dev-master' into dev-3.x

Conflicts:
	build/get/get-min.js
	build/loader-base/loader-base-coverage.js
	build/loader-base/loader-base-min.js
	build/loader-yui3/loader-yui3-min.js
	build/loader/loader-min.js
	build/simpleyui/simpleyui-min.js
	build/yui-base/yui-base-min.js
	build/yui-core/yui-core-min.js
	build/yui-nodejs/yui-nodejs-min.js
	build/yui/yui-min.js
[WIP] Lower-level fix to improve new BaseCore() times. Store cfg in State by reference, since the we already isolate it higher up in the API.
[WIP] Initial drop for cached ATTRS aggregation across instances, to speed up construction for > 1 instance use case.

* attribute, attribute-core, base, base-core unit tests all pass.
* app, widget, widget-parent/child, dd tests all pass.

Benchmark sample, on Chrome 23

3.8.0

MyBaseCore with 20 varied attributes (using perf. best practices) x 11,805 ops/sec ±1.89% (89 runs sampled)
MyBaseCore with 20 varied attributes x 7,039 ops/sec ±3.74% (73 runs sampled)
MyBaseCore with 10 simple value attributes x 21,069 ops/sec ±1.66% (93 runs sampled)
MyBaseCore x 60,417 ops/sec ±2.23% (90 runs sampled)
BaseCore x 61,683 ops/sec ±0.92% (86 runs sampled)

This commit

MyBaseCore with 20 varied attributes (using perf. best practices) x 20,857 ops/sec ±1.94% (94 runs sampled)
MyBaseCore with 20 varied attributes x 9,384 ops/sec ±4.12% (71 runs sampled)
MyBaseCore with 10 simple value attributes x 36,140 ops/sec ±2.03% (92 runs sampled)
MyBaseCore x 78,936 ops/sec ±3.45% (89 runs sampled)
BaseCore x 81,023 ops/sec ±2.64% (90 runs sampled)

This is an initial baseline pass to validate:

1) The potential benefits of the approach.
2) The feasibility of the approach - by fully passing unit test suites.

The focus was on making sure we have passing feature tests, there by establishing
the minimal performance savings available, without compromising stability.

That is, we should be able to get *at least* this much savings, but likely more,
since we may be over-isolating some of the configs/default values, based on the focus
to have passing tests.

Next Steps For BaseCore:

a) Look into isolation code paths, to make sure we're optimially isolating cfgs and default values, and
   not iterating more than we need to.

b) Look at some lower-level, potentially micro optimizations to speed up the Attribute->State interface,
   maybe leveraging ES5 where available.

Next Steps for Base:

a) Optimize Event firing/publishing for the "No Listeners" path, so new Base() approaches new BaseCore()
shifter --walk on this branch
Merge build
Merge upstream dev-3x into local copy.
Merge chartaxismodularization into dev-3x.
Updated build files.