Force the project name to be `accountapp` so Gradle doesn't get clever

My pipeline was failing because Gradle was using the name of the pipeline to
infer the project name, i.e. "infra_accountapp" which results in an incorrectly
named war file.

Silly Gradle

Dockerfile

@@ -2,7 +2,7 @@ FROM anapsix/alpine-java:jre8
 
 RUN adduser -D -h /home/accountapp accountapp
 ADD bin /home/accountapp/bin
-ADD build/libs/account-app*.war /home/accountapp/bin/accountapp.war
+ADD build/libs/accountapp*.war /home/accountapp/bin/accountapp.war
 
 EXPOSE 8080
 USER accountapp

Jenkinsfile

@@ -22,7 +22,6 @@ node('docker') {
 node('docker') {
     stage 'Package'
     unarchive mapping: ['build/' : 'build/']
-    sh 'ls ; ls build; ls build/libs'
 
     sh 'git rev-parse HEAD > GIT_COMMIT'
     shortCommit = readFile('GIT_COMMIT').take(6)

settings.gradle

@@ -0,0 +1 @@
+rootProject.name = 'accountapp'