Add the ability to retrieve tags for an aws instance
Merge pull request #268 from techhat/issue128

Add the ability to retrieve tags for an aws instance
Allow kwargs for --action
Merge pull request #269 from techhat/issue267

Allow kwargs for --action
Add tags to aws instance
add_tags becomes set_tags, add del_tags
Merge pull request #271 from techhat/issue128

Adding set_tags, del_tags
Merge remote-tracking branch 'upstream/develop' into develop

* upstream/develop:
  add_tags becomes set_tags, add del_tags
  Add tags to aws instance
  Allow kwargs for --action
  Add the ability to retrieve tags for an aws instance