improvements to DataType.Date.parse

- return Date object when passed one (fixes #2530058, closes #2530059)
- accept timestamp as number or string
- remove obsolete workaround in validation
Merge remote-tracking branch 'upstream/master'
clean up var declaration for name argument. Fixes #2531867.
build node
Merge remote-tracking branch 'upstream/master'
Merge branch 'master' of git://github.com/yui/yui3
Merge branch 'master' of git://github.com/yui/yui3
Added yui-soon
Add manual tests for histograms.
Merge remote-tracking branch 'upstream/master'
Merge branch 'master' of git://github.com/yui/yui3
Added wrapper functions around setImmediate and setTimeout.
Merge branch 'master' of git://github.com/yui/yui3
Merge branch 'master' of git://github.com/yui/yui3
Merge branch 'master' of git://github.com/yui/yui3
Merge branch 'master' of git://github.com/yui/yui3
Removed trailing whitespace from charts, graphics and matrix files.
Build for charts, graphics and matrix. No mins changed.
Load JSON polyfill based on feature test. Rename old files to -polify versions, add native versions, add meta tests, remove old references from polyfills
update build file with polyfill versions