feat(web): menu element height too large in landscape view

**Issue by [mcdurdin](https://github.com/mcdurdin)**
_Saturday Dec 14, 2013_
_Originally opened as KD-248_

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On phones, the language menu element height is too large when rotated. This was fixed by correcting for viewport scale factor, but that messed up the height in the WP plug in. Change was reversed, but this needs further debugging.

This could be tested further, but in fact the entire menu needs to be revised to work more like the KM for iPhone and KM for Android apps, as that is more intuitive and familiar to users. If that is done, and the menu then takes the entire window, these issues should disappear naturally.