added rdoc for ldap strategy
added rdoc for ldap strategy

jamescallmebrent/omniauth,sbhalerao/CIYH_ver3,poznyakandrey/omniauth,fxposter/omniauth,thomasmillergb/Year2-ruby-software-hut,sideci-sample/sideci-sample-omniauth,yui-knk/omniauth,twalpole/omniauth,sbhalerao/CIYH_ver3,sbhalerao/CIYH_ver1,ngpestelos/omniauth,sbhalerao/CIYH_ver2,sbhalerao/CIYH_ver2,likeberi/omniauth,intridea/omniauth,github/omniauth,sbhalerao/CIYH_ver2,sbhalerao/CIYH_ver1,mihar/omniauth-timekiwi,sbhalerao/CIYH_ver3,sbhalerao/CIYH_ver2,sbhalerao/CIYH_ver1,sbhalerao/CIYH_ver1,needto/omniauth,sbhalerao/CIYH_ver3,sbhalerao/CIYH_ver1,toyokazu/omniauth_shibboleth,thomasmillergb/Year2-ruby-software-hut,sbhalerao/CIYH_ver2,dougal/omniauth,ayunav/omniauth,nbrustein/omniauth,sbhalerao/CIYH_ver3,sbhalerao/CIYH_ver2,omniauth/omniauth