Instance tracking

This does not introduce any backwards incompatibility issues and will be beneficial to anyone attempting to distribute load based on the specified instance

Asynchronous signal handling for PHP 7.1+

This does not introduce any backwards incompatibility issues and will be beneficial to anyone running PHP 7.1+

v1.0.2: Merge pull request #2 from chasebolt/move-sleep

Properly addresses previous tag performance issue; all 1.0.1 dependencies are compatible and should be pinned at 1.0.2

v1.0.1

Fixed a CPU utilization issue by sleeping the parent for 1s. Safe and recommended to update all versions from v1.0 to v1.0.1.

v1.0

Updated README with more in depth example