Use :raw_info instead of 'original_ldap_entry'

Remove beta notice

Net::LDAP::Entry always returns an array of values.  

Net::LDAP::Entry (http://net-ldap.rubyforge.org/Net/LDAP/Entry.html) explicitly
returns an array of values for each attribute. The result of OmniAuth::Strategies::LDAP#map_user
was returning a string representation of the attribute values array (ie. "['attribute_value']"),
and it should be returning the actual attribute value.

Remove ruby-debug dependency

Wrapping original LDAP info in a hash so it doesn't break omniauth auth_hash interface

Conflicts:
	omniauth-ldap.gemspec

bump the version to 1.0.0

spec. Added spec test for ldap strategy