parser: remove dojoType etc, refs #4
remove firebug, refs #1
remove unused function from dojo/html.js
remove dojo/cache and associated tests, refs #1
don't implicitly load unrequested modules, refs #4
remove code for sync mode from currency, i18n tests, refs #4
remove dojo/ready and associated usages, refs #1

breaks dojo/robotx.js; we need another way for the test file to signal that it's ready.
remove sync code from i18n, but module still needs work, refs #4