Commit 44 (Beta candidate)
- Fix for bug {{else someUndefinedValue}}. See:
  https://github.com/BorisMoore/jsviews/issues/221
- Fix for issue:
  https://github.com/BorisMoore/jsviews/issues/220
- Fixes and improvements for $.observable.observe API
  (See www.jsviews.com/#$observable)
- Minor additional bug fixes and improvements