Fixed EN i18n diversity friendly = "updated his profile" -> "updated their profile".
Merge pull request #174 from clacote/ashe-dryden-friendly-i18n

Fixed EN i18n : "updated his profile" -> "updated their profile".
Serli as mixit14 sponsor.
Merge pull request #175 from clacote/sponsor-serli

Serli as mixit14 sponsor.
Open as mixit14 sponsor.
Merge pull request #179 from clacote/sponsor-open

Open as mixit14 sponsor.
Restored menus : sessions list, speakers, members, staff.
Sessions list : port submission alert block to bootstrap 3.
New page+menu : code of conduct
Footer: Code of conduct link instead of "Copyright Mix-IT 2014". Fixes mix-it/linkit#178
Code of conduct page: two columns layout.
Code of conduct page: icon outside link
Code of conduct; fixed English typos.
Merge pull request #181 from clacote/feat/178-code-of-conduct

Code of conduct
Merge pull request #180 from clacote/public-sessions-list

Public sessions list
session detail fixes #137
dashboard align fixes #53
login form fixes #107
Merge pull request #184 from cexbrayat/dashboard-align

Dashboard align
Merge pull request #185 from cexbrayat/login-form

Login form