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/showblocks/lang/sr-latn.js

@@ -1 +1 @@
-CKEDITOR.plugins.setLang("showblocks","sr-latn",{toolbar:"Show Blocks"});
+CKEDITOR.plugins.setLang("showblocks","sr-latn",{toolbar:"Prikaži blokove"});

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

@@ -1 +1 @@
-CKEDITOR.plugins.setLang("showblocks","sr",{toolbar:"Show Blocks"});
+CKEDITOR.plugins.setLang("showblocks","sr",{toolbar:"Прикажи блокове"});

front/lib/AdminLTE/bower_components/ckeditor/plugins/showblocks/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(){var k={readOnly:1,preserveState:!0,editorFocus:!1,exec:function(a){this.toggleState();this.refresh(a)},refresh:function(a){if(a.document){var c=this.state!=CKEDITOR.TRISTATE_ON||a.elementMode==CKEDITOR.ELEMENT_MODE_INLINE&&!a.focusManager.hasFocus?"removeClass":"attachClass";a.editable()[c]("cke_show_blocks")}}};CKEDITOR.plugins.add("showblocks",{lang:"af,ar,az,bg,bn,bs,ca,cs,cy,da,de,de-ch,el,en,en-au,en-ca,en-gb,eo,es,es-mx,et,eu,fa,fi,fo,fr,fr-ca,gl,gu,he,hi,hr,hu,id,is,it,ja,ka,km,ko,ku,lt,lv,mk,mn,ms,nb,nl,no,oc,pl,pt,pt-br,ro,ru,si,sk,sl,sq,sr,sr-latn,sv,th,tr,tt,ug,uk,vi,zh,zh-cn",