tree edae98b087d37e91a11eb1dc248eaaa0f68bf3a2
parent c940f4bdc876e7c3e57d1c13dd2c394af2819ee7
author Junxiao Shi <git@mail1.yoursunny.com> 1421794886 -0700
committer Junxiao Shi <sunnylandh@gmail.com> 1422050648 -0800

util: replace EventEmitter with Signal in NotificationSubscriber

refs #2350

Breaks: nfd:commit:04cf5a99d93d8f64571753260e71ade90332f860
Breaks: nlsr:commit:c2e51f6b6b85a602275dd59bfaaa0fa0403e0978


Change-Id: I54e9b8b8f8d172826616b33e8363cd27a1c53917