OO-4410 Fixed "delete selection" in table column chooser

src/main/webapp/static/js/JS.README

@@ -6,8 +6,8 @@ Widgets: remove accordion, progressbar, slider, spinner, tabs
 Effects: need only Effects Core and Pulsate Effect
 Theme: Smoothness
 
-The js.plugins.min.js and js.plugins.min.css are build with:
-  mvn -Pcompressjs verify 
+To compile js.plugins.min.js and js.plugins.min.css check the readme file in the root directory
+	 
 It contains the following minified javascripts:
   functions.js
   jshashtable-2.1_src.js

src/main/webapp/static/js/functions.js

@@ -1950,7 +1950,7 @@ function o_choice_toggleCheck(ref, checked) {
 	else {
 		var i;
 		for (i=0; i < len; i++) {
-			if (checkboxes[i].type == 'checkbox' && checkboxes[i].getAttribute('class') == 'o_checkbox') {
+			if (checkboxes[i].type == 'checkbox' && checkboxes[i].getAttribute('class') == 'o_checkbox' && checkboxes[i].getAttribute('disabled') != 'disabled') {
 				checkboxes[i].checked=checked;
 			}
 		}