add Guard
you can pass tags as part of instance creation
Merge pull request #3 from quandl/feature/reaper

you can pass tags as part of instance creation
Merge branch 'master' of github.com:quandl/quandl_sandbox into develop
Merge branch 'develop' of github.com:quandl/quandl_sandbox into develop
refactored override tags to fix issue with empty environment in instance name
Merge pull request #4 from quandl/feature/reaper

refactored override tags to fix issue with empty environment in instance...
docs
merge
Merge branch 'develop'
add key_data to ec2 gateway