window jQuery: foo -> foo asJQuery in non-Helios code
window jQuery: foo -> foo asJQuery
alert:  HLWidget -> Widget, plus prompt: and confirm:
Smalltalkizing methods, less use of jQuery global
PlatformInterface abstracting alert: etc. and ajax:
Widget inheriting alert: & Co. from InterfacingObject
PackageHandler inheriting ajax: from InterfacingObject
Deprecating old load API directly on Package class.

All jQuery uses are in Canvas package
or go through PackageInterface >> ajax:
BrowserInterface in Canvas. jQuery used only in Canvas.
Fixing class docs for platform interface & Co.
tests for global variables in PlatformInterface
Environment inherits alert:, only 3 uses of window left
Fix PlatformInterface initialization in non-browser env