Renames keyboard folder to keyboards, adds couple of tmk's fixes (#432)

* fixes from tmk's repo

* rename keyboard to keyboards

keyboards/cluepad/cluepad.c

@@ -0,0 +1,35 @@
+#include "cluepad.h"
+
+__attribute__ ((weak))
+void matrix_init_user(void) {
+    // leave these blank
+};
+
+__attribute__ ((weak))
+void matrix_scan_user(void) {
+    // leave these blank
+};
+
+void matrix_init_kb(void) {
+    // put your keyboard start-up code here
+    // runs once when the firmware starts up
+    if (matrix_init_user) {
+        (*matrix_init_user)();
+    }
+
+    #ifdef BACKLIGHT_ENABLE
+        init_backlight_pin();
+    #endif
+
+    // JTAG disable for PORT F. write JTD bit twice within four cycles.
+    MCUCR |= (1<<JTD);
+    MCUCR |= (1<<JTD);
+};
+
+void matrix_scan_kb(void) {
+	// put your looping keyboard code here
+	// runs every cycle (a lot)
+	if (matrix_scan_user) {
+		(*matrix_scan_user)();
+	}
+};