* master: (511 commits)
Update CHANGELOG.md
core: avoid diff mismatch on NewRemoved fields during -/+
Update CHANGELOG.md
update CHANGELOG
Fix minor error in index/count docs
terraform: remove debug
terraform: when pruning destroy, only match exact nodes, or exact counts
up version for dev
update CHANGELOG
terraform: prune tainted destroys if no tainted in state [GH-1475]
update CHANGELOG
config/lang: support math on variables through implicits
update CHANGELOG
update cHANGELOG
update cHANGELOG
providers/aws: set id outside if/esle
providers/aws: set ID after creation
core: remove dead code from pre-deposed refactor
website: update LC docs to note name is optional
security_groups field expects a list of Security Group Group Names, not IDs
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