Add Hyves to README, alphabetize OAuth providers in README
Add Hyves to README, alphabetize OAuth providers in README

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