Merge pull request #12 from mlevvy/master

Updated description + updated contact page.
new logo from 33rd on white background
updated Test Kata meetup link
updated to point to testkata as next meeting
added missing sponsor, made sponsor links behave consistently
Michał joins Warsjawa team
added Warsjawa team contact email
Maciej Próchniak and Type Driven Development
Added posters. Fixed 118 meeting page