Make search results a little more obvious

/cc @wheresrhys @commuterjoy 

Add 'Search Results: ' to the title of searches (note: This keeps that name when you favourite it - but that is maybe a good thing? i.e. it will save it as 'Search Results: Oil' rather than just 'Oil').
Keep search box open, with the current query, on search result pages.

![search](https://cloud.githubusercontent.com/assets/1978880/4979699/19955cca-68f9-11e4-8eb5-0764a569ae64.gif)