. Split auth headers / do auth methods again, and make authenticate call each in turn.
-. Document / test 'algorithm' config - MD5-sess / MD5.
-. Better documentation for 'domain' option.
-. Domain option should be able to be passed as config.
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+. Test 'algorithm' config / MD5-sess properly.
+. Full implementation of MD5-sess with remote authentication service.
+. Domain option should be able to be passed as config.
+. Support for NTLM auth?
+. Config verification / validation on construction.
+. Test all config parameters (esp username_field)
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