Added nickname to LinkedIn strategy using the same method as FaceBook.
Added nickname to LinkedIn strategy using the same method as FaceBook.

dougal/omniauth,thomasmillergb/Year2-ruby-software-hut,thomasmillergb/Year2-ruby-software-hut,sideci-sample/sideci-sample-omniauth,nbrustein/omniauth,yui-knk/omniauth,ayunav/omniauth,fxposter/omniauth,ngpestelos/omniauth,github/omniauth,likeberi/omniauth,intridea/omniauth,twalpole/omniauth,omniauth/omniauth,mihar/omniauth-timekiwi,toyokazu/omniauth_shibboleth,poznyakandrey/omniauth