Add environment setup+teardown for dev

Includes a change to listener to enable a different endpoint when in testing environement.

.settings/org.eclipse.jdt.core.prefs

@@ -112,5 +112,5 @@ org.eclipse.jdt.core.compiler.problem.unusedTypeParameter=warning
 org.eclipse.jdt.core.compiler.problem.unusedWarningToken=warning
 org.eclipse.jdt.core.compiler.problem.varargsArgumentNeedCast=warning
 org.eclipse.jdt.core.compiler.processAnnotations=enabled
-org.eclipse.jdt.core.compiler.release=disabled
-org.eclipse.jdt.core.compiler.source=1.8
+org.eclipse.jdt.core.compiler.release=enabled
+org.eclipse.jdt.core.compiler.source=11