simplify subPlaceable and fix it for numbers in ctxdata
Don't wait for complete

In some cases (e.g. the net error page) the window.onload event never fires
and document.readyState never changes to complete.

See:
 - https://bugzil.la/444165
 - http://hg.mozilla.org/mozilla-central/file/a57801cec8be/docshell/resources/content/netError.xhtml#l374
use the inline JSON for the default locale, too

Due to CSP, about:neterror cannot have any non-inline resources.  The only
thing it can have is the inline JSON, even for the default locale.  So we need
a way to use the inline resources with the default locale.
Get the test runner to work
Remove old bindings tests
Remove old build/ files
compiler tests: primitives
compiler tests: env
compiler tests: macros
compiler tests: insecure (don't pass)
compiler tests: ctxdata
compiler tests: indexes
compiler tests: insecure; implements MAX_PLACEABLES and MAX_PLACEABLE_LENGTH