use common font for special unicode characters used as sidebar handle, should take care of modilabs/enketo/issues/593
use less obscure character as a handle
upgraded XSLT lib
Merge pull request #597 from MartijnR/master

slight improvement for sidebar handle in iOS, allow spaces in single select value
Merge branch 'master' of https://github.com/modilabs/enketo into enketo.formhub.org