dojo.date.stamp refactor

[Adam Peller]

implement to/fromIsoString() methods

add references to spec on the 'net (likely some subset of 8601) AND provide a link. Maybe:

​http://www.w3.org/TR/NOTE-datetime

and

​http://www.ietf.org/rfc/rfc3339.txt

move other code out to dojox or remove entirely

create the RegExp? objects as constants in the class, or at least do it only once. If someone is using Iso8601 dates a lot, they're going to pay to recompile that regex every time, which seems silly. One pattern might be:

dojo.date.serial.setIso8601Date = function(/*String*/dateObject, /*String*/formattedString){

var regexp = (this._setIso8601DateRE

(this._setIso8601DateRE = (...create the regex...)));

[Adam Peller]

(In [8881]) Replace Rfc3339/Iso8601 methods with to/fromISOString methods to resemble ECMAScript 4 spec. Fixes #3007

[Adam Peller]

(In [8882]) Additional comments. Refs #3007

[Adam Peller]

(In [8910]) make iso date unit tests pass with new API. Refs #3007

[Adam Peller]

(In [8924]) tests.date.stamp UT was failing on IE. Refs #3007

[Adam Peller]

(In [9026]) Use faster regexp methods. Refs #3007

[Adam Peller]

(In [22228]) Fix a long-standing regression on IE8, brought about by r21776. Thanks, wildbill, for noticing! Refs #3007

[Adam Peller]

In r22228, IE returns the empty string for failed matches in a regexp. I was only testing for undefined (used by FF and others)