Merge pull request hashicorp#2376 from hashicorp/fix-security-group-r…

…ule-hashing-with-source-sg

Consider security groups with source security groups when hashing

v0.5.2

Merge pull request hashicorp#1365 from hashicorp/f-0-4-0-deps

record deps for 0.4.0 release

helper/schema: zero value set should set function [hashicorpGH-1009]