[PE mobile] Don't use spellcheck for mobile app.

apps/presentationeditor/mobile/app/controller/Main.js

@@ -437,6 +437,8 @@ define([
 
                 Common.localStorage.setItem("pe-settings-showsnaplines", me.api.get_ShowSnapLines() ? 1 : 0);
 
+                me.api.asc_setSpellCheck(false); // don't use spellcheck for mobile mode
+
                 me.api.asc_registerCallback('asc_onStartAction',            _.bind(me.onLongActionBegin, me));
                 me.api.asc_registerCallback('asc_onEndAction',              _.bind(me.onLongActionEnd, me));
                 me.api.asc_registerCallback('asc_onCoAuthoringDisconnect',  _.bind(me.onCoAuthoringDisconnect, me));