fix gw-test to fail after first gradlew failure

.aliases

@@ -109,8 +109,10 @@ function _gwTest1() {
     echo "RUNNING gw $@"
     printf -- '-%0.s' {1..80}; echo
     ./gradlew "$@"
+    local buildResultCode=$?
     printf -- '-%0.s' {1..80}; echo
     echo "DONE gw $@"
+    return buildResultCode
 }
 function _gwTest() {
   . .aliases