Squashed commit of the following

commit aabba696 
Author: Barclay Walsh <barclay.walsh@parivedasolutions.com> 
Date: Tue Nov 19 2019 14:21:04 GMT-0600 (Central Standard Time) 

    Updated Elasticsearch to 6.8.


commit 25ca9eb8 
Author: Barclay Walsh <barclay.walsh@parivedasolutions.com> 
Date: Tue Nov 19 2019 08:54:05 GMT-0600 (Central Standard Time) 

    Changed test index name back to the normal name, now that testing is over.


commit 1833d39b 
Author: Barclay Walsh <barclay.walsh@parivedasolutions.com> 
Date: Tue Nov 19 2019 08:44:30 GMT-0600 (Central Standard Time) 

    Changed the default number of Elasticsearch nodes to 2.


commit 1aebda14 
Author: Barclay Walsh <barclay.walsh@parivedasolutions.com> 
Date: Tue Nov 19 2019 08:17:26 GMT-0600 (Central Standard Time) 

    Added Elasticsearch permissions to the CFNRole.


commit 0fb07525 
Author: Barclay Walsh <barclay.walsh@parivedasolutions.com> 
Date: Tue Nov 19 2019 08:08:30 GMT-0600 (Central Standard Time) 

    Added template for Elasticsearch domain/cluster; added an Elasticsearch stack to the automated pipeline; added Elasticsearch parameters to each environment's parameters file.