Merge pull request #46 from dazz/master

Added my talk about JSON Schema
Added missing talks to slides view
Added dates
Merge pull request #47 from dazz/add-slides

Added missing talks to slides view
Updated logo w/ thicker outset (white border)

.. for sticker use.
Added slides for my talk on 06.11.2013 to the slides page.
Merge pull request #48 from timon-schroeter/master

Added slides for my talk on 06.11.2013 to the slides page.
added january
add PHP-GTK talk to event
Committing to master like a boss. Also, happy new year!
added february
added regulars table block
proposal for february
Merge pull request #49 from igorw/patch-1

proposal for february
Update 2014-02-04-february.html
Merge pull request #50 from rtens/patch-2

Added "Small Steps (Sudoku edition)" announcement
Fixed links and style
Merge pull request #51 from rtens/patch-3

Smal Steps announcement: Fixed links and style
Slides für feb 2014, keine ahnung ob das gut aussieht, musste halt testen
Merge pull request #52 from igorw/master

Slides für feb 2014, keine ahnung ob das gut aussieht, musste halt testen