Tests are python 3.2 compatible now
Added old ProxyManager API compatibility
Fixed comments
Some code cleanup
Added proxy property to PoolManager
Slight code refactoring and simplification, as suggested by @wolever
Changed some wording in tests (suggested by @t-8ch)
Another test diagnostic message change
Proxy Host header now includes port if provided
Fix deadlock in Tornado threads (single-threaded now)
Test cert verification via proxy
fix test_proxy_verified
increase timeouts to work on pypy
Removed unnecessary pool.proxy and pool.proxy_headers assignments in ProxyManager
Remove unncecessary proxy code from PoolManager
Fixed test coverage.