interim commit pending re-think
more work on data binding
comment out all console logging and update quick perf test
increase node count in perf test
remove .each binding stuff for now, as it may not have been getting anywhere
support multiple bindings inside one attribute
updates for nested template data binding
interim commit for data binding rewrite
single level nested template data binding works
first example of binding an each expression working
updates to binding for node fragments.
Merge branch 'add_stack'

Conflicts:
	index.html
first successful run of structured each loop
more work on binding, this time for loops
reapply for simple top level iterator works now
test updates, debugging
interim commit
unit tests running after slight rewrite of binding
small cleanup, doc update, added (currently unused) nested each test
reinstate previous curly bracketstag, step 1