PostgreSQL 10 reports its version as only `major.minor`, so it can’t be parsed with semver. The `server_version_num` setting is a major version followed by a four-digit minor version since version 10, and was a three-digit major version followed by a two-digit minor version before that.
* Work on converting lib to standard
* Finish updating lib
* Finish linting lib
* Format test files
* Add .eslintrc with standard format
* Supply full path to eslint bin
* Move lint command to package.json
* Add eslint as dev dependency
Clients are not reusable. This changes the client to raise errors whenever you try to reconnect a client that's already been used. They're cheap to create: just instantiate a new one (or use the pool) 😉.
Closes#1352
