Authenticate with artifactory for testing.

To support integration testing with Apache Solr, the CI system must authenticate with artifactory to pull down an artifact not found anywhere else.

Closes #1968

Jenkinsfile

@@ -30,6 +30,11 @@ pipeline {
                         }
                     }
                     options { timeout(time: 30, unit: 'MINUTES') }
+
+		            environment {
+		                ARTIFACTORY = credentials('02bd1690-b54f-4c9f-819d-a77cb7a9822c')
+		            }
+
                     steps {
                         sh 'rm -rf ?'
                         sh 'mkdir -p /tmp/mongodb/db /tmp/mongodb/log'
@@ -37,7 +42,7 @@ pipeline {
                         sh 'sleep 10'
                         sh 'mongo --eval "rs.initiate({_id: \'rs0\', members:[{_id: 0, host: \'127.0.0.1:27017\'}]});"'
                         sh 'sleep 15'
-                        sh 'MAVEN_OPTS="-Duser.name=jenkins -Duser.home=/tmp/jenkins-home" ./mvnw clean dependency:list test -Dsort -U -B -Pit'
+                        sh 'MAVEN_OPTS="-Duser.name=jenkins -Duser.home=/tmp/jenkins-home" ./mvnw clean dependency:list test -Dsort -U -B -Pit -s settings.xml'
                     }
                 }
             }

settings.xml

@@ -0,0 +1,12 @@
+<settings xmlns="http://maven.apache.org/SETTINGS/1.0.0"
+          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+          xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.0.0 https://maven.apache.org/xsd/settings-1.0.0.xsd">
+
+	<servers>
+		<server>
+			<id>spring-libs-snapshot</id>
+			<username>${env.ARTIFACTORY_USR}</username>
+			<password>${env.ARTIFACTORY_PSW}</password>
+		</server>
+	</servers>
+</settings>