Added Lamina into the deps
Written up a new XMLT with the idea of using Lamina channels for half-laziness - just got 'add-tag' to write now
Written up the add-tag fn
Added another clause into add-fn for anything that can be stringified
Fixed a bug whereby if there was more than one element, only the first would be traversed
Dealing with other types of XML events by just forwarding them through
Fixing a race condition in the closing of the writer