Added to parse the same optional config argument that
format uses.
Added tests, updated the API docs and user guide.
Moved the regular expression out of the method.
Merge branch 'dev-3.x' into numberparser
Added a parse function builder.
Said function gets cached.
Dropped uses of Y.Lang.
I have to pay attention to JSHint messages.
I have to pay attention to JSHint messages.
.... and so on.
Added some more tests for edge conditions.
While trying to write a better version I found some of the
tests didn't cover some edge conditions and they didn't
check the groups of numbers were not reversed
or shuffled around.
Merge branch 'dev-3.x' into numberparser
Merge branch 'dev-3.x' into numberparser
Merge branch 'dev-3.x' into numberparser
Added Histoy.md entry
Merged new tests into existing suite.

Also made the error message clearer.
Added tests for inputs that return null.

Making sure it doesn't break down.
Added a few more tests
A blank, non-empty string now returns null.

Corrected as per @lsmith so that a string of nothing but whitespace
now returns null and not 0 as before.
Changed tests to account for this change.
Merge branch 'numberparser' of https://github.com/Satyam/yui3-1 into Satyam-numberparser
Update History.
Merge branch 'dev-3.x' of https://github.com/yui/yui3 into numberparser
Build.