Forward port 5 4 2 (#2781)

* Add new version to enum

* Add backport tags, new VersionEnum, and new release folder for 5.4.2

hapi-fhir-base/src/main/java/ca/uhn/fhir/util/VersionEnum.java

@@ -73,6 +73,7 @@ public enum VersionEnum {
 	V5_3_3,
 	V5_4_0,
 	V5_4_1,
+	V5_4_2,
 	V5_5_0,
 	;
 

hapi-fhir-docs/src/main/resources/ca/uhn/hapi/fhir/changelog/5_4_2/version.yaml

@@ -0,0 +1,3 @@
+---
+release-date: "2021-07-06"
+codename: "Pangolin"

hapi-fhir-docs/src/main/resources/ca/uhn/hapi/fhir/changelog/5_5_0/2732-bump-conceptmap-group-element-display-size.yaml

@@ -1,4 +1,5 @@
 ---
 type: change
+backport: 5.4.2
 issue: 2732
 title: "The ConceptMap.group.element.display storage size limit has been increased to 500 characters."

hapi-fhir-docs/src/main/resources/ca/uhn/hapi/fhir/changelog/5_5_0/2739-max-mdm-matches.yaml

@@ -1,5 +1,6 @@
 ---
 type: fix
 issue: 2739
+backport: 5.4.2
 title: "Too many MDM candidates matching could result in an OutOfMemoryError.  Candidate matching is now limited to the
 value of IMdmSettings.getCandidateSearchLimit(), default 10000."

hapi-fhir-docs/src/main/resources/ca/uhn/hapi/fhir/changelog/5_5_0/2747-null-checks-on-mdm-manual-updates.yaml

@@ -1,4 +1,5 @@
 ---
 type: fix
 issue: 2747
+backport: 5.4.2
 title: "Added null checks to MDM resource interceptor in order to avoid NPEs."

hapi-fhir-docs/src/main/resources/ca/uhn/hapi/fhir/changelog/5_5_0/2748-add-inline-tag-mode.yaml

@@ -1,6 +1,7 @@
 ---
 type: add
 issue: 2748
+backport: 5.4.2
 title: "A new tag storage mode called **Inline Tag Mode** tas been added. In this mode, all tags are stored directly
   in the serialized resource body in the database, instead of using dedicated tables. This has significant performance
   advantages when storing resources with many distinct tags (i.e. many tags that are unique to each resource, as opposed

hapi-fhir-docs/src/main/resources/ca/uhn/hapi/fhir/changelog/5_5_0/2748-fix-profile-search-sp.yaml

@@ -1,5 +1,6 @@
 ---
 type: fix
 issue: 2748
+backport: 5.4.2
 title: "The SQL generated for the `_profile` search parameter did not use all of the columns on the tag index table,
    resulting on poor performance on MySQL. This has been corrected."

hapi-fhir-docs/src/main/resources/ca/uhn/hapi/fhir/changelog/5_5_0/2760-collapse-shared-compartments.yaml

@@ -1,6 +1,7 @@
 ---
 type: change
 issue: 2760
+backport: 5.4.2
 title: "If two authorization compartments apply to the same targets and share the same compartment name,
 then instead of creating a new compartment, the rule builder now adds the new owner to the list of owners in the
 existing compartment."

hapi-fhir-docs/src/main/resources/ca/uhn/hapi/fhir/changelog/5_5_0/2762-fix-false-rule-matches.yaml

@@ -1,4 +1,5 @@
 ---
 type: fix
 issue: 2762
+backport: 5.4.2
 title: "A regression was introduced in 2760 where a READ compartment could get collapsed into a WRITE compartment.  This has been corrected."

hapi-fhir-docs/src/main/resources/ca/uhn/hapi/fhir/changelog/5_5_0/2764-fix-mdm-rules.yaml

@@ -1,5 +1,6 @@
 ---
 type: fix
 issue: 2764
+backport: 5.4.2
 title: "Searches for mdm-expanded references such as Observation?subject:mdm=123 were getting denied by access rules
 that did not recognize the :mdm suffix.  This has been corrected."

hapi-fhir-docs/src/main/resources/ca/uhn/hapi/fhir/changelog/5_5_0/2773-flyway-out-of-order.yaml

@@ -1,5 +1,6 @@
 ---
 type: change
 issue: 2773
+backport: 5.4.2
 title: "Flyway migration used to enforce order by default.  This has been changed so now the default behaviour is
 out of order migrations are permitted.  Strict order can be enforced via the new strict-order flag if required."