Add tests and basic CSV parsing for ci_ip_diagnostics log format
Ensure ci_ip_diagnostics fields have correct type
Add filter.d/ for common filter fragments
Use @target for namespacing
Don't name fields with a `.` in the name
Standardise on " rather than '
Create a full timestamp by combining the current date with the arrival_time field
Integration tests to verify the ci_ip_diagnostics parsing
fix failing ci_log4net test case assuming analyzed field /issue #110
Merge branch 'master' into issue-110-diagnostics-log-format
Merge pull request #110 from cityindex/issue-110-diagnostics-log-format

Grok Parse Failure (Diagnostics.log)