FIX tslint errors

src/Offline/babylon.database.ts

@@ -156,7 +156,7 @@ module BABYLON {
                 if (Tools.UseCustomRequestHeaders) {
                     Tools.InjectCustomRequestHeaders(xhr);
                 }
-                
+
                 xhr.send();
             }
             catch (ex) {

src/Tools/babylon.tools.ts

@@ -203,7 +203,7 @@ module BABYLON {
         public static BaseUrl = "";
 
         /**
-         * Enable/Disable Custom HTTP Request Headers globally. 
+         * Enable/Disable Custom HTTP Request Headers globally.
          * default = false
          * @see CustomRequestHeaders
          */
@@ -216,7 +216,6 @@ module BABYLON {
          */
         public static CustomRequestHeaders: { [key: string]: string } = {};
 
-        
         /**
          * Gets or sets the retry strategy to apply when an error happens while loading an asset
          */