bring clarinet tests up to date with reduced set of events
remove iit from tests
incremental content builder using reduced set of SAX events
catch test up with smaller set of SAX events
rebuild dist code
Merge branch 'master' into swaps

Conflicts:
	src/incrementalContentBuilder.js
swapping out nodes seems to work now
add more tests for node swapping
remove useless return
fix crash on attempt to replace root node
rebuld dist code