logic: file associations for Mac and opening project files via Mac OS

* hide start screen when opening with project file
* added project icon file to bundle and file type association to plist
* listen for file open events from double click or drag and drop
* fixed crashes in window handling

src/lib/utility/messaging/type/MessageEnteredLicense.h

@@ -0,0 +1,21 @@
+#ifndef MESSAGE_ENTERED_LICENSE_H
+#define MESSAGE_ENTERED_LICENSE_H
+
+#include "utility/messaging/Message.h"
+
+class MessageEnteredLicense
+	: public Message<MessageEnteredLicense>
+{
+public:
+	MessageEnteredLicense()
+	{
+		setSendAsTask(false);
+	}
+
+	static const std::string getStaticType()
+	{
+		return "MessageEnteredLicense";
+	}
+};
+
+#endif // MESSAGE_ENTERED_LICENSE_H