support w-belong= multiple display scope ids, some minor tweaks
Improvements to the page, binding and custom element API
* No more clumsiness in declaring pages, the new "Router" procedure
looks much more logical. There's no need for the extra SetStartPage
anymore
* No need to specify public attributes for custom tag anymore, all exported
fields automatically becomes valid HTML attribute now
* Implement robust binding for properties, thus the "disabled" binder is
removed, now a @disabled= works just the same
Add "checkpoint" calls in necessary places, fix the watching not working
on browsers that don't support Object.observe.
Further API changes
* Move scope to a separate package
* Custom tag/custom element now called "Component", no more wdefine, the
way to specify the template is more elegant. Add a "Scope" to component
prototype's init func
* Some renaming of things to be more reasonable
Merge branch 'master' of github.com:phaikawl/wade