0.6.0

• Implementing sync() method based on XSync but without a discard parameter.
• Adding discard() method to clear the event queue.
• Added keyCodeToKeySym() methods.
• Added keySymToKeyCodes() method.
• Added getKeySym() method.
• getAtom(int) now returns an AtomValue which contains the id and name.
• Added getWMProtocols(int) to returns the supported protocols for a window.
• Added killClient(int) and inputFocus(int).
• Added Generator for KeySym enum.
• Added KeyboardService to handle the keyboard for the client.
• Added BasicWindowManager to example tests.