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
* Add client connectionString tests (#1310)
* Remove redundant tests
* Add client connectionString test
Add test to ensure { connectionString } is respected as an argument to the client constructor
* Add test for connection string property
Also fixed some legacy require statements.
* Normalize native error properties
Map native error properties to the same property names we use for errors from the JS driver.
Fixes#972Fixes#938
