Updated Copyright claims

- updated reference dates;
- removed reference to Community Edition;
- normalized logging using Clipperz.log[Warn|Error|Debug]

frontend/gamma/properties/gamma.properties.json

@@ -9,13 +9,13 @@
 	"js": [
 		"MochiKit/Base.js",
 		"MochiKit/Iter.js",
-		"MochiKit/Logging.js",
+		"-- MochiKit/Logging.js",
 		"-- MochiKit/DateTime.js",
 		"MochiKit/Format.js",
 		"MochiKit/Async.js",
 		"MochiKit/DOM.js",
 		"MochiKit/Style.js",
-		"MochiKit/LoggingPane.js",
+		"-- MochiKit/LoggingPane.js",
 		"MochiKit/Color.js",
 		"MochiKit/Signal.js",
 		"MochiKit/Position.js",