First take on standalone sponsors page
Second take on standalone sponsors page
Work in progress
Merge pull request #43 from Agis-/sponsors_page

Second take on standalone sponsors page
Third take on standalone sponsors page
Merge remote-tracking branch 'origin/master' into sponsors_page
Fix main page sponsors section alignment.
A first take on Skroutz info as a Gaia sponsor.
Announcement for Skroutz sponsorship.
Indention fixes.
Wooga as an Aphrodite sponsor.
Link to skroutz.gr on Skroutz image.
Announcement for Wooga sponsorship.
Update sponsors page title to include EuRuKo 2013.
Reduce spacing between speakers.
Make the speakers/cfp section a little bit more up-to-date.
Rebuilding the website

* Update speakers section regarding the CfP and the wording.
* Minor CSS fixes in speakers section.
Merge remote-tracking branch 'origin/master' into sponsors_page
Show 'back to top' only on tablets & mobiles
Update homepage with dates for 1st batch of tickets.

Details:

* Real time countdown until the sales opening time.
* Announcement in mini news.
* Update wordings and styling in tickets section.