Disable Twitter fetching (because of mix-it/linkit#110), and to minimize traces and keep useful ones.
Merge pull request #172 from clacote/less-traces

Disable Twitter fetching (because of mix-it/linkit#110), and to minimize traces and keep useful ones.
Steria as Mix-IT 2014 sponsor.
Merge pull request #173 from clacote/sponsor-steria

Steria as Mix-IT 2014 sponsor.