v5.2.7

Bug fixes:

• Rack::Session::Dalli's 401 for a session deleted mid-request called Hash#slice on the session options. A Rails session store puts an ActionDispatch::Request::Session::Options there, so the 401 raised NoMethodError instead of expiring the cookie (#1291, @seballot)
• Since 5.2.0, on JRuby with TLS, Dalli could wait socket_timeout for part of a reply that had already arrived, because jruby-openssl can hold it where neither IO.select nor OpenSSL's pending reports it. A get_multi could take socket_timeout longer than it needed to. Dalli now reads on JRuby until the TLS socket would block (#1293)