Added -initWithRootElement: and -setRootElement: to DDXMLDocument.
Fixed compiler errors when enabling memory debugging.
Added an assertion when creating an invalid node in debug mode.
Fixed a memory issue caused by not referencing the owner node when setting a document's root.
Implemented content-based node comparison.
Cleaned up comparison code.
Element attributes are now compared independent from their order.
Enabled ARM-64.
Fixed a 64 bit type conversion warning.
Merge branch 'refs/heads/master' into ns-declarations-enabled