* Update core R5 code to v4.6.0 (breaking changes to questionnaire, concept map, and other resources that are less important to core)
* Fix compartment definitions of ListResource.source and subject for R3 and R4
* Snapshot generator: fix problem checking types on logical models
* Do not flag internal references as suspicious
* XMLParser allows passing a schema location
* XMLParser allows passing a schema location
* Issue 484 https://github.com/hapifhir/org.hl7.fhir.core/issues/484
* Adding Kotlin to the build process
* random cleaning up in convertors
* Adding version option to ignore bundle entry in conversion advisors
* Validator: Load code systems from known packages on the fly
* Validator: better handle invalid v3 dates
* Renderer: Render OperationDefinition.InputProfile and OutputProfile
* Important: Allow more valid schemas for Utilities.isAbsoluteUrl
* Validator: remove notes about extensible bindings if profile extensible binding is valid
***NO_CI***
Terminology: Ensure that CVX uses tx.fhir.org, not UTG definitions which are wrong
Validator: Fix problems with Bundle validation for ids in collections and add additional search related validation
Validator: Remove check on ElementDefinition.id for R2B
***NO_CI***
* Breaking Change: Fix issue where primitive elements with required bindings must have a value, but this wasn't be checked
* Fix bug with value set imports not working
* Fix bug with base definitions not working properly for logical models
* Better memory tracking for validator
* Get code generator compiling
***NO_CI***
* fix R2B for checking resource IDs
* Properly check code validity when an expansion is provided, but the code system is unknown
* fix problem with R2B StructureDefinition transform
* Improve validator performance
* Add support for forthcoming release
***NO_CI***
Version Conversion:
* add test for Observation conversion from 10 to 40
* add procedures conversion form dstu2 to r4
* add medication conversion from dstu2 to r4
* add copy of extension field for Enumeration fieldtype by Resource.copy
* add default value to Medication Request during conversion from dstu2 to r4
* fix R2B/R5 ElementDefinition.type.code conversion
Other:
* minor fixes in code generators for R4B
* Fix null pointer exception in validator validating language codes
* fix issue with validating fixed values for primitive elements
* add utility to unzip file
***NO_CI***
* Sessions are working,
* adding javadocs to cache
* These changes were already added, the merge re-added them to the RELEASE_NOTES by mistake.
* cleaning code a little
