[Prefs] Tableview based Prefs
[iOS7] Thinner side margins in the toolbar

That's a hack: we had fixed-space items of negative width.
[Prefs] Move the "ok" button to the navbar
[Prefs] remove unnecessary iOS6 hacky customization code
[Style] Fix the status bar styles in MapVC / PrefsVC
[Prefs] Simplify structure some more
[Prefs] Use a Title+Detail cell for the update cell
[Prefs] Disable the "update" cell if currentcity is nil
[Prefs] fix the "rate on app store" url for iOS 7
[Prefs] tweak geofences cell to display a subtitle if unavailable.
[Prefs] variable cell height
[Geofences] wording for the geofences prefs
[i18n] Update "en" translation of prefs. Remove PL and DE translations.
Merge pull request #90 from n-b/PreferencesRedesign

Preferences redesign