Update AdminLTE

- from 2.4.5 to 2.4.18 (cannot detect any issues)
- set default scancycle for Apple Devices to 1

front/lib/AdminLTE/bower_components/ckeditor/plugins/bidi/lang/sr-latn.js

@@ -1 +1 @@
-CKEDITOR.plugins.setLang("bidi","sr-latn",{ltr:"Text direction from left to right",rtl:"Text direction from right to left"});
+CKEDITOR.plugins.setLang("bidi","sr-latn",{ltr:"Pravac teksta sa leva na desno",rtl:"Pravac teksta sa desna na levo"});

front/lib/AdminLTE/bower_components/ckeditor/plugins/bidi/lang/sr.js

@@ -1 +1 @@
-CKEDITOR.plugins.setLang("bidi","sr",{ltr:"Text direction from left to right",rtl:"Text direction from right to left"});
+CKEDITOR.plugins.setLang("bidi","sr",{ltr:"Правац текста са лева на десно",rtl:"Правац текста са десно на лево"});

front/lib/AdminLTE/bower_components/ckeditor/plugins/bidi/plugin.js

@@ -1,5 +1,5 @@
 /*
- Copyright (c) 2003-2018, CKSource - Frederico Knabben. All rights reserved.
+ Copyright (c) 2003-2019, CKSource - Frederico Knabben. All rights reserved.
  For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
 */
 (function(){function q(a,f,d,b){if(!a.isReadOnly()&&!a.equals(d.editable())){CKEDITOR.dom.element.setMarker(b,a,"bidi_processed",1);b=a;for(var c=d.editable();(b=b.getParent())&&!b.equals(c);)if(b.getCustomData("bidi_processed")){a.removeStyle("direction");a.removeAttribute("dir");return}b="useComputedState"in d.config?d.config.useComputedState:1;(b?a.getComputedStyle("direction"):a.getStyle("direction")||a.hasAttribute("dir"))!=f&&(a.removeStyle("direction"),b?(a.removeAttribute("dir"),f!=a.getComputedStyle("direction")&&