UI Updates

- Added responsive splash page ( http://i.imgur.com/yN3r3SZ.gifv & http://i.imgur.com/ZxTTP4y.gifv )
- Made origin text visible again
- Move map centre to user location after it is selected
- Search boxes stack at lower screen width's ( http://i.imgur.com/G1973wH.gifv )
- Added loading animation when fetching station results from svr ( http://i.imgur.com/8Id9tyN.gifv )