update Markus Sabadello editor entry
removing $copy and $move
removing large commented-out section
removing value context node
removing the $multiple$operations error, since multiple different
operations in a single message should actually be okay
removing the $duplicate$operations error, since that is actually a
generic de-serialization error, and not specific to messages or
operations
formatting the "XDI Message Pattern Rules" table
operation result --> message result
updating references to XDI Messaging definitions
adding CORS support
Bindings uppercase
WIP XDI Browser Binding
fixing reference to CORS spec
more work on XDI Browser Binding