try to support openid connect subjects identifier types#907

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hhniao wants to merge 4 commits intobshaffer:mainfrom

Commits on Jan 4, 2018

try to support openid connect subjects identifier types, not test.
liuchunhua
committed
finish test, but just complete storage memory.
liuchunhua
committed
try to support openid connect subject identifier type.
liuchunhua
committed
restore mysql storage to memory storage.
liuchunhua
committed