* NPE fixes
* Smart Health Cards support in validator
* Fix bug generating spreadsheets due to sheet name length limitations
* Implement descendent-of filter
* more NPE fixes
* add Element.removeChild
* fix issue generation snapshot and content reference, and work around old erroneous binding description in R4
* improve SHC validation error
* fix for NPE generating ConceptMap spreadsheet
* fix crash in IG publisher rendering illegal content
* Improve slicing error messages
* more improving error message resolving slicing
* add missing code + track prohibited / required elements (improve rendering of IGs)
* fix for broken links in R4B IGs
* fix bug related to logger in FHIRToolingClient
* fix bug related to logger in context
* enable detection of whether tx server knows about value set and better track returned errors from tx server
* make likely source URL visible outside ProfileUtilities
* fix renderers - don't make nonvalid URLs into html links + fix NPE +
* fix bug with sheetnames generating spreadsheets
* supper branches in current version of packages
* report slicing information automatically where slicing is based on profile + fix shc support + support codesystem-properties-mode + fix value set validation on profiles + fix wrong entry point on vaildating contained resources with profiles
* fix misleading validation message + add -ips parameter for validator
* hint not warning when it's an example questionnaire
* ongoing work around connection problems with tx.fhir.org
* fix for bug processing CCDA constraints (logical model constraints)
* fix for bug loading Measures from packages
* fix NPEs loading invalid packages
* Start Working on i18n for Rendering + Fix case bug rendering bundles and parameters
* Fix for problem with expansion code checking and incomplete value sets
* release notes
Fixed problem where parser would get stuck in an infinite loop when allowing unexpected elements and actually encountering one
Fixed problem with localizing relative links in narrative if the reference starts with ../