remodel getAssetUrl() as a context-scoped asset method, rename to assetUrls()

no more cache seed binaries manifest nonsense; leave urls in stylesheets alone

check if asset has already been added in assets()

remove debug log

modules need to copied when overriding

fix global leak

pass urls to asset method callbacks; expose resolveModule() method

pass back() options to archiver onRestore() and onRestoreAfterTransition()

copy resourceCache when charlotte redefines itself

a way of setting precompiled templates

fix url resolution when checking for cached template

fix premature callback() in loadTemplates()

options argument is optional

added tab.backTo() method

added client-side bundle responder functionality