First Pre-Release, refactoring for Foreman patch changes to GET and POST proxy calls

Added refactoring to accomodate for Foreman patch changes to GET and POST proxy calls.

First Pre-Release, adding temporary in-memory cache to hold mac/ip

Adding a temporary in-memory cache to hold mac/ip so that the same IP will not be suggested to different MAC addresses

First Pre-Release, support for older ruby versions

Reverting to hashrockets to support older ruby versions

First Pre-Release, minor refactoring, updating documentation

Merge pull request #2 from grizzthedj/develop

Some minor refactoring and documentation

First Pre-Release

New Foreman Smart Proxy Plugin for IPAM with external IPAM providers. This version currently supports phpIPAM(https://phpipam.net)

Plugin Features and functionality

• Auto suggests next available IP from phpIPAM based on a given subnet.
• Addition of IP's to phpIPAM subnets(on Foreman Host create)
• Deletion of IP's allocated in phpIPAM subnets(on Foreman Host delete, and/or NIC delete)
• Checks for IP existence in phpIPAM subnets