Implement E&HQ in CheckerFrameworkVersion because it is a ConfigurationValueType and might be listed.

src/core/lombok/core/configuration/CheckerFrameworkVersion.java

@@ -83,4 +83,13 @@ public final class CheckerFrameworkVersion implements ConfigurationValueType {
 		String s = (MAX_SUPPORTED / 1000) + "." + (MAX_SUPPORTED % 1000);
 		return "major.minor (example: 2.9 - and no higher than " + s + ") or true or false";
 	}
+	
+	@Override public boolean equals(Object obj) {
+		if (!(obj instanceof CheckerFrameworkVersion)) return false;
+		return version == ((CheckerFrameworkVersion) obj).version;
+	}
+	
+	@Override public int hashCode() {
+		return version;
+	}
 }