Merge pull request #1277 from stude1/master

Sponsor logos first draft Helsinki 2014
Merge pull request #1278 from stude1/master

One more proposal, fixed logos for Helsinki 2014
Berlin: Clarified Coffee and snacks after registration
Merge pull request #1279 from jbraeuer/master

Berlin: Clarified Coffee and snacks after registration
Added O'Reilly as Silver sponsor
Added O'Reilly as Silver sponsor
Merge pull request #1280 from tolomaus/master

Added O'Reilly as Silver sponsor
Change dates on main page
TLV sponsors
Moving Warsaw, New York, and Toronto to the past events.
Fix grammar mistake for TLV event
Merge pull request #1282 from stude1/master

Ignite, sidebar fix and new sponsor for Helsinki 2014
Merge pull request #1283 from stude1/master

Layout fixes
Merge pull request #1281 from bridgetkromhout/master

Moving Warsaw, New York, and Toronto to the past events.
Add past events: Warsaw, New York, Toronto, Boston, Brisbane; which were held in 2014.

Signed-off-by: Krzysztof Wilczynski <krzysztof.wilczynski@linux.com>
Merge pull request #1284 from kwilczynski/master

Add past events: Warsaw, New York, Toronto, Boston, Brisbane; which were...