CON-Venus breakpoint adjustment for ad skins

Changed large breakpoint to fix width of adskins on all large displays.

```$breakpoint-upper = $large-content-width + 2 * $ad-skin-width; // 1156px + 2 * 170px;```
jquery.wikia.loadLibrary.js is already included in Venus. Right now it is in 'global_navigation_js' group