Results 6 issues of JM

This change allows the user to configure the message content-type with an optional parameter or using the PSSlackConfig as requested in the linked issue.

It would be nice to get syntax highlighted added for the file diffs as well as the comment markdown.

I'd like to mirror the YNAB tests for now that live in the Ruby/JS sdks for consistency. https://github.com/ynab/ynab-sdk-js/tree/master/test https://github.com/ynab/ynab-sdk-ruby/tree/master/spec

enhancement

Setup Travis or some other CI/CD pipeline to run the tests.

enhancement

The swagger spec doesn't have support for nullable types using "type": ["uuid", "null"] as I'd hoped. After talking with YNAB team sounds like until an OpenAPI 3.0 implementation is ready...

bug

Running Test-ForUnimportedModuleFile without External *.ps1 scripts throws the following error. ``` Compare-Object : Cannot bind argument to parameter 'ReferenceObject' because it is null. At C:\Users\jmoening\workspace\ScriptCop\Rules\Test-ForUnimportedModuleFile.ps1:21 char:37 + Compare-Object -ReferenceObject $verbNounPairFiles...