tree d1fe429f48a236658b1969c5858ef028456d8c7a
parent 94dbf77e9a8638e8cfb156475e5bc5a0e21794cc
author Aaron Zinman <aaron@azinman.com> 1468270136 -0700
committer Aaron Zinman <aaron@azinman.com> 1468270136 -0700

swift/ref: Implement invite scan & neighborhood ad/scan

Not yet tested but API implemented, including changes to the API
in ref to use handle in a uintptr map instead of a separate scanId in
a global ref map -- it was an extra layer of indirection.

Also fixes potential leaks of handlers in Swift should an exception
occur during startScan calls, uses alias instead of email, and makes
sure unit tests don't use DISPATCH_TIME_FOREVER to prevent any
deadlocks from preventing unit tests from finishing.

JNI patches come from @razvanm via CL 23685.

MultiPart: 2/2
Change-Id: I68773818d705180f1edf464baefdbacf1b1f1aa2