Merge pull request #69 from cjuniet/master

Fix ZMQ.Poll for NetMQ.Proxy
Removed the requirement for Tests project to have access to NetMQ project internals, added Poll overload to wait indefinitely.
Updated code formatting, inlined array initialization
Added the test specific to the issue described in #69
Merge pull request #71 from almazik/fix/PR69

Updated tests and removed InternalsVisibleTo from tests