gdispInit() -> gfxInit() in all demos

demos/3rdparty/notepad-2/main.c

@@ -81,7 +81,7 @@ int main(void) {
   chSysInit();
 
   /* initialize the LCD */
-  gdispInit();
+  gfxInit();
   gdispClear(Black);
 
   /* Calibrate the touchscreen */

demos/3rdparty/notepad-2/readme.txt

@@ -14,4 +14,4 @@ This demo is planned to support Loading and Saving to SD Card the sketches made
 Copyright © 2013 Kumar Abhishek [abhishek.kakkar@edaboard.com]. All Rights Reserved
 This code is made available under the terms of the 3-clause BSD License.
 
-Some of the icons in the set have been taken from the fugue-icons-set by Yusuke Kamiyamane: http://p.yusukekamiyamane.com/  . These icons are covered by a Creative Commons Attribution 3.0 License.
+Some of the icons in the set have been taken from the fugue-icons-set by Yusuke Kamiyamane: http://p.yusukekamiyamane.com/  . These icons are covered by a Creative Commons Attribution 3.0 License.

demos/modules/gwin/slider/readme.txt

@@ -3,4 +3,4 @@ If your platform does not support one or the other, turn it off in
 gfxconf.h
 
 Note that you will need to include the drivers into your project
-makefile for whichever inputs you decide to use.
+makefile for whichever inputs you decide to use.