Merge pull request #2 from warszawajug/staging

Add Marek Bedkowski
Merge pull request #3 from warszawajug/staging

Add Sylwester Madej
Added Michał Lipski to speakers list. Added also pics of some other new speakers.
Updated Bitspiration logo.
Added Mobica to sponsors list.
Fixed placeholder templates.
Added Programista to partners list.
Just comma.
Added Tomasz Grynfelder to speakers list.
Merge pull request #4 from warszawajug/tomasz-grynfelder

Added Tomasz Grynfelder to speakers list.
Added Sii to sponsors list.
Add Kamil Szymański and Marcin Korniluk
Add Dariusz Aniszewski and Dariusz Seweryn
Organizers WIP.