Release version 4.0.0

Author: Ugo Plouviez

gradle.properties

@@ -1,4 +1,4 @@
-iexecCommonVersion=4.0.0-SNAPSHOT
+iexecCommonVersion=4.0.0
 nexusUser=fake
 nexusPassword=fake
-version=4.0.0-SNAPSHOT
+version=4.0.0

src/main/resources/application.yml

@@ -32,7 +32,7 @@ detector:
 
 workers:
   askForReplicatePeriod: ${IEXEC_ASK_REPLICATE_PERIOD:5000}
-  requiredWorkerVersion: ${IEXEC_CORE_REQUIRED_WORKER_VERSION:} #leave empty will allow any worker version
+  requiredWorkerVersion: ${IEXEC_CORE_REQUIRED_WORKER_VERSION:4.0.0} #leave empty will allow any worker version
   # the whitelist format should be as follow (comma separated on one or multiple lines:
   # whitelist: ${IEXEC_WHITELIST:address1,
   #     address2,