Fix maps race in append and merge tests
Fix TestWriteDot random order error
include terraform in published package name
Fix graphviz_test with test table

The tests were explicitly checking order where the underlying implementation is `map[string]*BasicNode`. This PR addresses the order which is not known and within the test I create a test table to allow multiple tests (2 in this PR rather than 1).
Fix a minor typo in the README.
Merge pull request #132 from jlund/typo

Fix a minor typo in the README.
providers/digitalocean: restart droplet in failed resize
providers/digitalocean: only save private ip address if private
providers/digitalocean: fix comment
Add documentation for aws_db_instance/final_snapshot_identifer.
Merge pull request #137 from hectcastro/final_snapshot_identifier

Add documentation for aws_db_instance/final_snapshot_identifer
Fix output of aws_db_instance port via endpoint

When trying to output the `endpoint` attribute of an `aws_db_instance`,
the port was not being emitted properly. Converting the port number from
an integer to a string has resolved the issue.
Merge pull request #142 from hectcastro/missing_db_endpoint_port

Fix output of aws_db_instance port via endpoint
Add required description attribute to aws_security_group example.
Merge pull request #144 from hectcastro/valid_aws_security_group_example

Add required description attribute to aws_security_group example
command: terraform.tfvars loaded by default if it exists
helper/ssh: error if private key on SSH [GH-73]
config: additional tests for sanity
terraform: multi-variables work with count = 1 [GH-115]
fmt