Amrita 1.0.2 + XML + amrita_id fix

For those still using Amrita 1.0.2 for whatever reason, I've made a
patch that makes setting amrita_id work when using REXML as a parser,
particularly so I can use amrita:id as my amrita_id.

The patch is attached.

Ari

amrita-xml-fubar.patch (1.86 KB)