boot.js: pkg/method/klass manip extracted out of Smalltalk
boot.js: metaclass .meta = true shared in prototype
boot.js: Smalltalk 'JS reserved words' shared in prototype
boot.js: DNU handler created near messageNotUnderstood
boot.js: SmalltalkMemory and Smalltalk[Runtime] decoupled
boot.js: Selector conversion extracted to SmalltalkMethod
boot.js: Smalltalk.create, SmalltalkMemory bootstrap
boot.js: nextId moved to Smalltalk runtime
Merge branch 'gh-546' into breaking-monolithic-bootjs