Update build number for release relative to issue #1500.

Author: pjewald

src/main/resources/com/parallax/server/blocklyprop/internationalization/translations.properties

@@ -28,7 +28,7 @@ footer.clientdownloadlink = BlocklyProp-client
 # Application version numbers.
 application.major = 1
 application.minor = 1
-application.build = 453
+application.build = 455
 
 html.content_missing = Content missing