templates: major UI tweaks

* fixed horizontall scroll in mobile version
* search box above breadcrumbs
* allignment of contact section
* placed the search box in the center of page
* size image resized to fit in navbar
* allignment of news feeds and boxes
* on going implementation of tabs keeping their state

Signed-off-by: Georgios Kokosioulis <georgios.kokosioulis@cern.ch>
templates: minor fixes

* updated links in the navbar
* incread the space below search box
* twitter widget retains its space

Signed-off-by: Georgios Kokosioulis <georgios.kokosioulis@cern.ch>
search: keeps the current state of a tab

* used local storage to save the tab state
* cleaned up the code

Signed-off-by: Georgios Kokosioulis <georgios.kokosioulis@cern.ch>
Merge pull request #13 from giokokos/search-fix

templates: major UI tweaks