1.2.9

Validator Changes
General: Support for validating and publishing CDSHooks content - see http://build.fhir.org/ig/FHIR/fhir-tools-ig/branches/master/binary.html
Validator: Fix NPE building CCDA IG
Renderer: Render period on Identifiers
Renderer: Render Tooling IG extensions in Profile table
Renderer: Add test script rendering
Renderer: improvements for Tools IG Extensions
QA: Update Acceptable SCT licenses on advice from SCT Intl
Go-Publish: fix NPE issue
Go-Publish: Fix IHE case error