Enable interrupting HTTP requests in-flight when a MeekConn is closed.
Code review cleanups
Fix: iterator.Close() was not called in some cases, leaking resources
Merge pull request #36 from adam-p/master

Added stats support
Merge branch 'master' of https://github.com/Psiphon-Labs/psiphon-tunnel-core
Merge remote-tracking branch 'upstream/master'