(#856) - don't slice arguments if there is no callback
(#854) - Ensure update_seq is updated across instances
(#854) - _info should return doc_count/seqno from stores

fixes problem where the db is being updated and doc_count is incremented
but _info is returing an old value. since doc_count is cached on writes then
_info should use this cached value instead.
(#857) - Reorder layout on learn navigation
(#858) - Switch to more convenient level npm package
(#859) - Allow user to specify CouchDB host to test against
(#860) - New scripts for CI testing
(#864) - Revert package name change, required lower case
Merge branch 'master' into firefox_env

# By Dale Harvey (6) and others
# Via Dale Harvey
* master:
  (#864) - Revert package name change, required lower case
  (#860) - New scripts for CI testing
  (#859) - Allow user to specify CouchDB host to test against
  (#858) - Switch to more convenient level npm package
  (#857) - Reorder layout on learn navigation
  (#854) - _info should return doc_count/seqno from stores
  (#854) - Ensure update_seq is updated across instances
  (#856) - don't slice arguments if there is no callback