Feature: Forward compatibility with EventLoop v1.0 and v0.5 and
lock minimum dependencies and work around circular dependency for tests
(#70 and #71 by @clue)

Fix: Work around DNS timeout issues for Windows users
(#74 by @clue)

Documentation and examples for advanced usage
(#66 by @WyriHaximus)

Remove broken TCP code, do not retry with invalid TCP query
(#73 by @clue)

Improve test suite by fixing HHVM build for now again and ignore future HHVM build errors and
lock Travis distro so new defaults will not break the build and
fix failing tests for PHP 7.1
(#68 by @WyriHaximus and #69 and #72 by @clue)