Bring master up to the same state as develop and [release] 6.2.1-A8

There were minor changes required in addition to the following cherry picks. Most notably changes from 0b0ae21a37 on the 21/04/2020 and the addition of the scripts/travis directory.

[maven-release-plugin][skip ci]prepare release acs-community-packaging-6.2.1-A7

(cherry picked from commit 9a6769cf85)
[maven-release-plugin][skip ci]prepare for next development iteration

(cherry picked from commit 8ccf987875)
Pick up Share 6.2.1 and get ready for 6.2.1-A8

(cherry picked from commit b6ab0471ba)

scripts/travis/copy_to_release_bucket.sh

@@ -0,0 +1,17 @@
+#!/usr/bin/env bash
+set -ev
+
+if [ -z ${COMM_RELEASE_VERSION} ] || [ -z ${RELEASE_VERSION} ];
+then
+  echo "Please provide a COMM_RELEASE_VERSION and RELEASE_VERSION in the format <acs-version>-<additional-info> (6.3.0-EA or 6.3.0-SNAPSHOT)"
+  exit -1
+fi
+
+build_number=$1
+branch_name=$2
+build_stage=release
+SOURCE=s3://alfresco-artefacts-staging/alfresco-content-services-community/$build_stage/$branch_name/$build_number
+DESTINATION=s3://eu.dl.alfresco.com/release/community/$COMM_RELEASE_VERSION-build-$build_number
+
+aws s3 cp --acl private $SOURCE/alfresco.war $DESTINATION/alfresco.war
+aws s3 cp --acl private $SOURCE/alfresco-content-services-community-distribution-$RELEASE_VERSION.zip $DESTINATION/alfresco-content-services-community-distribution-$RELEASE_VERSION.zip

scripts/travis/maven_release.sh

@@ -0,0 +1,31 @@
+#!/usr/bin/env bash
+set -e
+
+releaseVersion=$1
+developmentVersion=$2
+scm_path=$(mvn help:evaluate -Dexpression=project.scm.url -q -DforceStdout)
+
+# Use full history for release
+git checkout -B "${TRAVIS_BRANCH}"
+# Add email to link commits to user
+git config user.email "${GIT_EMAIL}"
+
+if [ -z ${releaseVersion} ] || [ -z ${developmentVersion} ]; 
+    then echo "Please provide a Release and Development verison in the format <acs-version>-<additional-info> (6.3.0-EA or 6.3.0-SNAPSHOT)"
+         exit -1
+else   
+    mvn --batch-mode \
+    -PfullBuild,all-tas-tests \
+    -Dusername="${GIT_USERNAME}" \
+    -Dpassword="${GIT_PASSWORD}" \
+    -DreleaseVersion=${releaseVersion} \
+    -DdevelopmentVersion=${developmentVersion} \
+    -Dbuild-number=${TRAVIS_BUILD_NUMBER} \
+    -Dbuild-name="${TRAVIS_BUILD_STAGE_NAME}" \
+    -Dscm-path=${scm_path} \
+    -DscmCommentPrefix="[maven-release-plugin][skip ci]" \
+    -DskipTests \
+    "-Darguments=-DskipTests -Dbuild-number=${TRAVIS_BUILD_NUMBER} '-Dbuild-name=${TRAVIS_BUILD_STAGE_NAME}' -Dscm-path=${scm_path} -PfullBuild,all-tas-tests" \
+    release:clean release:prepare release:perform \
+    -Prelease
+fi

scripts/travis/verify_release_tag.sh

@@ -0,0 +1,31 @@
+#!/usr/bin/env bash
+set -e
+
+if [ -v ${RELEASE_VERSION} ]||[ -z ${RELEASE_VERSION} ]; then
+    echo "Please provide a RELEASE_VERSION in the format <acs-version>-<additional-info> (6.3.0-EA or 6.3.0-SNAPSHOT)"
+    exit -1
+fi
+# get the image name from the pom file
+alfresco_docker_image=$(mvn help:evaluate -f ./docker-alfresco/pom.xml -Dexpression=image.name -q -DforceStdout)
+docker_image_full_name="$alfresco_docker_image:$RELEASE_VERSION"
+
+function docker_image_exists() {
+  local image_full_name="$1"; shift
+    local wait_time="${1:-5}"
+    local search_term='Pulling|is up to date|not found'
+    echo "Looking to see if $image_full_name already exists..."
+    local result="$((timeout --preserve-status "$wait_time" docker 2>&1 pull "$image_full_name" &) | grep -v 'Pulling repository' | egrep -o "$search_term")"
+    test "$result" || { echo "Timed out too soon. Try using a wait_time greater than $wait_time..."; return 1 ;}
+    if echo $result | grep -vq 'not found'; then
+        true
+    else 
+        false
+    fi
+}
+
+if docker_image_exists $docker_image_full_name; then
+    echo "Tag $RELEASE_VERSION already pushed, release process will interrupt."
+    exit -1 
+else
+    echo "The $RELEASE_VERSION tag was not found"
+fi