[IndexedDB] Features not included in the first version of the spec

[Arthur Barstow]

Jonas created a list of IndexedDB features that are not included in the 
first version of the spec. Those features are documented in the 
following wiki page:

  http://www.w3.org/2008/webapps/wiki/IndexedDatabaseFeatures
Comments on this document are welcome.

-Art Barstow