dojo.parser enhancements (as discussed with bill)

[alex]

Several issues exist with dojo.parser today:

• it's not possible to register a preamble
• connect is the default, not replace
• there's no way to impedence match for classes that don't follow the (args, node) convention in their ctor
• the code isn't well factored and does too much hitch()-ing
• dojo/connect should be named dojo/method
• dojo.parser has no tests

[alex]

(In [9314]) tests for dojo.parser. Refs #3535

[alex]

(In [9316]) adding first-argument preamble plucking. Makes impedence matching easier when you don't want to muge the prototoype's preamble. Refs #3535

[alex]

(In [9317]) updating the parser to:

• handle preambles
• enhance the semantics for <script> parsing. Mixin assignment is now the default, connects happen via mode="connect"
• array parsing enhancements (now snarfs surrounding whitespace)
• markupFactory() for classes which don't wish to modify their ctor semantics
• less hitch()-ing

Fixes #3535. Still need more tests (esp for markupFactory).

[alex]

(In [9318]) test for markupFactory(). Refs #3535