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
Merge branch 'master' into goedit

* master:
  Add note about setTimeout/setInterval
  Add ability to interrupt the runtime
  Fix groups.google.com link
  Add link to godoc.org
  Add JSON
  Add objectLength
  Fix Value.isArray => isArray