Added support for disable the toggle

dist/js/ratchet.js

@@ -989,6 +989,9 @@
     if (!toggle) {
       return;
     }
+    if(toggle.classList.contains('disabled')) {
+      return;
+    }
 
     var handle      = toggle.querySelector('.toggle-handle');
     var toggleWidth = toggle.clientWidth;
@@ -1009,6 +1012,9 @@
     if (!toggle) {
       return;
     }
+    if(toggle.classList.contains('disabled')) {
+      return;
+    }
 
     var handle      = toggle.querySelector('.toggle-handle');
     var current     = e.touches[0];
@@ -1041,6 +1047,9 @@
     if (!toggle) {
       return;
     }
+    if(toggle.classList.contains('disabled')) {
+      return;
+    }
 
     var handle      = toggle.querySelector('.toggle-handle');
     var toggleWidth = toggle.clientWidth;