Add multi-db support

In order to separate the omop tables from the harvest tables, multi-db
support is added and configured. This involved adding a db router and
changing the settings. As a matter of tidiness, the unused local.py
settings file is removed.

Signed-off-by: Aaron Browne <aaron0browne@gmail.com>
Added several tests and run with selenium discover

Signed-off-by: Sheik Hassan <solergiga@yahoo.com>
Run Headless Tests command. Requires small test database

Signed-off-by: Sheik Hassan <solergiga@yahoo.com>
Adding logstash config generator
Adding logstash service and initialization
Changes to headless tests to run on any port/server

Signed-off-by: Hassan <hassans@0023df83c786.chop.edu>
Merge pull request #86 from cbmi/develop

Merge from develop including multi-db, headless tests, and logstash