Merge pull request #431 from seanchannel/develop

remove submodule, revert pull request #391
Make create errors in ec2 clearer
Use specific instead of generic exception
Merge pull request #434 from techhat/ec2errors

Make create errors in ec2 clearer
correctly handle no AZ in config on AWS fixes #436
Merge pull request #438 from jbadigital/no-az

Correctly handle no AZ in config on AWS fixes #436
Fixing inconsistent capitalization
example rename was not visible