bump clamp version
s/connection/service/
Loosen exception matching for InUse exception

Now looks like:

```
InUse => Group 1234:group-name is used by groups: 4567:group2-name ...
```
EC2 expects port ranges to start at the low end
add 2.1.1 to travis matrix
ensure pretend is disabled before each spec
new aws creds
enable caching
travis no longer supports rbx-19mode
update structure
Ignore protocols we do not currently handle
Ignore vpc security groups
Use a dedicated AWS account for fog-bouncer
Merge pull request #33 from dylanegan/various-fixes

Various fixes