Ensure we can run rql and similar tests (rethinkdb#192)

Merge pull request rethinkdb#182 from tommilligan/no-close-on-timeout

net: do not close socket on EWOULDBLOCK, as this can happen during cursor iteration

Merge pull request rethinkdb#170 from rethinkdb/support-db-url-schemas

Implement DB URL connection support

Revert "Feature/wildcard certs hostname" (rethinkdb#150)

Merge pull request rethinkdb#146 from rethinkdb/dependabot/pip/pytest…

…-cov-2.8.1

Bump pytest-cov from 2.7.1 to 2.8.1

Merge pull request rethinkdb#139 from rethinkdb/fix-dump-command

Fix dump command

Merge pull request rethinkdb#130 from rethinkdb/dependabot/pip/trio-0…

….12.1

Bump trio from 0.11.0 to 0.12.1

Fix setup.py (rethinkdb#117)

Fix StopIteration exception related issue (rethinkdb#115)

* Fix issue rethinkdb#110

* Add unit and integration tests for r.now()

* Fix indentation

use the correct binary