add links to soulmates and jobs to the top nav

The links to Jobs and Soulmates are added to the top nav, for tablet and bigger screens. No changes on mobile.
Feature behind the switch: 'guardian-services-links'

![screen shot 2014-07-14 at 13 28 01](https://cloud.githubusercontent.com/assets/1492162/3570591/60a8e0c8-0b52-11e4-895e-aa94477d5f43.png)
![screen shot 2014-07-14 at 13 27 37](https://cloud.githubusercontent.com/assets/1492162/3570590/6009e342-0b52-11e4-9699-ccf815b778f3.png)
Mobile -- unchanged
![screen shot 2014-07-14 at 10 48 07](https://cloud.githubusercontent.com/assets/1492162/3569758/89e3a53a-0b44-11e4-9114-7b8fcddf4098.png)

![](http://media.giphy.com/media/43VhxnrEOQ44U/giphy.gif)
Not sure what 'bottom border' you are refering to - the grey line above the logo is omnipresent.
Or are you refering to the border between the primary and seconday nav bars? If so - '0' please - so those borders just live in the exposed mega nav.