* master: (167 commits)
return error if failed to set tags on Route 53 zone
core: [tests] fix order dependent test
Fix hashcode for ASG test
provider/aws: Fix issue with tainted ASG groups failing to re-create
Don't error when reading s3 bucket with no tags
Avoid panics when DBName is not set
Add floating IP association in aceptance tests
Use env var OS_POOL_NAME as default for pool attribute
providers/heroku: Add heroku-postgres to example
docs: resource addressing
providers/heroku: Document environment variables
providers/heroku: Add region to example
Bugfix on floating IP assignment
Update CHANGELOG.md
update CHANGELOG
website: note on docker
core: formalize resource addressing
core: fill out context tests for targeted ops
core: docs for targeted operations
core: targeted operations
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