Remove references to admin:admin

DEVELOPER_GUIDE.md

@@ -137,12 +137,11 @@ Additionally, it is also possible to run a cluster with security enabled:
 ./gradlew run -Dsecurity.enabled=true
 ```
 
-By default, if `-Dsecurity.enabled=true` is passed the following defaults will be used: `https=true`, `user=admin` and
-`password=admin`.
+By default, if `-Dsecurity.enabled=true` is passed the following defaults will be used: `https=true`, `user=admin`. There is no default password and it is to be set as `password=<admin-password>`.
 
-Then, to access the cluster, we can run
+Then, to connect to the cluster, use the following command. Remember to replace `<admin-password>` with the password you chose when setting up the admin user.
 ```bash
-curl https://localhost:9200 --insecure -u admin:admin
+curl https://localhost:9200 --insecure -u admin:<admin-password>
 
 {
   "name" : "integTest-0",
@@ -191,7 +190,7 @@ Integration tests can be run with remote cluster. For that run the following com
 In case remote cluster is secured it's possible to pass username and password with the following command:
 
 ```
-./gradlew :integTestRemote -Dtests.rest.cluster=localhost:9200 -Dtests.cluster=localhost:9200 -Dtests.clustername="integTest-0" -Dhttps=true -Duser=admin -Dpassword=admin
+./gradlew :integTestRemote -Dtests.rest.cluster=localhost:9200 -Dtests.cluster=localhost:9200 -Dtests.clustername="integTest-0" -Dhttps=true -Duser=admin -Dpassword=<admin-password>
 ```
 
 ### Debugging

gradle/formatting.gradle

@@ -19,7 +19,7 @@ allprojects {
             }
         }
         format 'misc', {
-            target '*.md', '**/*.gradle', '**/*.json', '**/*.yaml', '**/*.yml', '**/*.svg'
+            target '*.md', '**/*.gradle', '**/*.json', '**/*.yaml', '**/*.yml', '**/*.svg', '**/*.properties'
 
             trimTrailingWhitespace()
             endWithNewline()