Apply RC6 label to the version

Marlin/Version.h

@@ -29,7 +29,7 @@
 /**
  * Marlin release version identifier
  */
-#define SHORT_BUILD_VERSION "1.1.0-RCBugFix"
+#define SHORT_BUILD_VERSION "1.1.0-RC6"
 
 /**
  * Verbose version identifier which should contain a reference to the location
@@ -42,7 +42,7 @@
  * here we define this default string as the date where the latest release
  * version was tagged.
  */
-#define STRING_DISTRIBUTION_DATE "2016-04-16 12:00"
+#define STRING_DISTRIBUTION_DATE "2016-04-24 12:00"
 
 /**
  * @todo: Missing documentation block