Remove ruxit, add sematext and datadog.
Merge pull request #1254 from pcn/add-sematext-remove-ruxit-nyc-2014

Remove ruxit, add sematext and datadog.
Berlin 2014: Add registration link on main page.
Berlin 2014: Improve program.
Berlin 2014: Add first Hands-On.
Merge pull request #1255 from jbraeuer/master

Berlin 2014: Better program.
Berlin 2014: Proposal was an Ignite in the first place.
Berlin 2014: Add Monitoring Hands-On.
Berlin 2014: Improve program.
Berlin 2014: Improve program.
Berlin 2014: Align program for both days.
Merge pull request #1256 from jbraeuer/master

Berlin 2014: More program.
[belgium 2014] add rackspace sponsor
more sponsors for Belgium
[belgium 2014] Axelos as sponsor
Gold sponsorship package is sold out now and replaced by Pearl package
Merge pull request #1257 from Tolomaus/master

Gold sponsorship package is sold out now and replaced by Pearl package