…' in regex and edge cases for metrics

…ored method

update exmaple for metrics_regex.yml

…ng metrics with file_regex. Remove test

that were not revelant according to JSON schema

…sonschema where 'file_regex'

is a separate property.

…gex.yml

add two example invalid metrics example
update documentation with section on invalid metrics

…down

…ng this to 'bash' executor

for metrics example

…orrectly we can now enforce the pattern matching.

update json schema and documentation

…ecified under 'regex' this is not an actual valid

test for invalid examples since 'file' is no longer part of 'regex'

…le. This test

will be used during regression test to add coverage