Fixes mix-it/linkit#4 with a simple <hr> on footer
Fixes mix-it/linkit#27 : boolean Member.profilePublic tells if profile can be publicly browsable (without being connected). Set to false be default. Set to true for Staff, Sponsor, and every speaker (Talk or LightningTalk).
Home: link to speaker profile (now that they are public)
Merge pull request #23 from clacote/bootstrap3-fix-4

Fixes mix-it/linkit#4 with a simple <hr> on footer
Merge pull request #32 from clacote/bootstrap3-public-profile

Public profile
Fixes mix-it/linkit#26:  reset Member.ticketingRegistered flag to false (no one already bought its mixit14 ticket)
Getting ready for new current event "mixit14".
navbar: Mix-IT 2013 before 2012 and 2011.
Merge pull request #30 from clacote/bootstrap3-reset-DB-for-new-event

Getting ready for `ConferenceEvent.mixit14`