Introduces expenses scaffolding app, ExpensesScaffold, complete with
event bus and places.

Creates (in bikeshed only, don't panic) new com.google.gwt.app
package, where app framework classes should accumulate. So far that
includes PlaceController et al. PlaceController doesn't yet do history
management.

Also introduces HasValueMap and ValueListBox, first attempt to make ListBox play in the HasValue world.

Review at http://gwt-code-reviews.appspot.com/209802


git-svn-id: https://google-web-toolkit.googlecode.com/svn/trunk@7743 8db76d5a-ed1c-0410-87a9-c151d255dfc7
43 files changed