Merge branch 'feature/apic-support' into develop
Merge branch 'develop' of https://github.com/zenoss/ZenPacks.zenoss.PythonCollector into develop
Release: Version 1.2.1dev -> 1.3.0.
Release: Document 1.3.0 changes.

Also added changes for all previous releases because they were
previously undocumented.
Merge branch 'release/1.3.0' into develop
Post Release: Version 1.3.0 -> 1.3.1dev.