Smoothing installer UX

• installer updates default_role on user if it already exists
• runners have "preflight check" which error clearly if user has no default_role

Dependency upgrades and bug fixes

• updated security vuln in requests dependency
• fixed failed alerts alerting code to properly populate event_time

CloudWatch functionality and bug fixes

Features Added:

• initial CloudWatch functionality

Bugs Fixed:

• alert creation errors link source value properly
• remove placeholder Jira env vars generated by installer

Jira handler bugfix

Fixes bug in Jira handler that was preventing Source values from linking to search properly

Testing feature release

1. improvements to Jira templating

• Sources value now a links to a search for more tickets with that source
• better escaping of { and [ characters

2. Docker Hub improvements

• fixed .dockerignore to work both locally and in cloud
• added functionality to auto build and tag releases

3. CircleCI fixes: created separate Docker image for builder