Fix Value.isArray => isArray
Add objectLength
Add JSON

This closes #37, #11
Add link to godoc.org

This fixes #52
Fix groups.google.com link
Add ability to interrupt the runtime

This fixes #12, #35
Add note about setTimeout/setInterval

This involves #53
Provide early warning of missing functionality (set:/get:)

This is a bandaid for #56
Call getter/setter if property is AccessorDescriptor

This fixes #36
This fixes #56
Fix a few aspects of accessor properties
If set === undefined => writable = false
Preserve existing get/set unless explicitly undefined
Fix assumption that property.value is Value
Fix for get/set: undefined is actually a getter/setter
Can set a setter/getter if absent (8.12.9 / 10.a.ii.1)
Clarify AccessorDescriptor logic in DefineOwnProperty even more
Guard against _nilGetSetObject sneaking in
Fix Put to see set/get properties
terst
Make sure to set the Otto/runtime dependency when copying

This is a problem in #57