Added love.keyboard.setKeyRepeat and love.keyboard.hasKeyRepeat (resolves issue #717)

src/modules/keyboard/Keyboard.h

@@ -235,6 +235,18 @@ public:
 
 	virtual ~Keyboard() {}
 
+	/**
+	 * Sets whether repeat keypress events should be sent if a key is held down.
+	 * Does not affect text input events.
+	 * @param enable Whether to send repeat key press events.
+	 **/
+	virtual void setKeyRepeat(bool enable) = 0;
+
+	/**
+	 * Gets whether repeat keypress events will be sent if a key is held down.
+	 **/
+	virtual bool hasKeyRepeat() const = 0;
+
 	/**
 	 * Checks whether a certain key is down or not.
 	 * @param key A key identifier.