* Add postgres 10/11 to test matrix
* Add docker-compose file fo running multiple postgres versions locally
* Fix client test for pg 10, modify function details to include specific fields
* Try to install latest postgres client
* Add concurrency setting
* Add func to parse out pg_dump version
* Perform client vs server version checking before dump exports
* Fix dump tests
* Add extra test to validate against empty server version
* Fix attachment filenames cleanup function
* Add extra test
* Fix small typos in comments
* Drop third-party package to deal with versions
* Tweak the pg dump incompatibility error message
* Run CI on pull requests