Defaulting report header to use filename if not a .NET based trx report

Updating filename and report name fields to default back to filename

- Occurs if certain .net specific parameters are not present in the trx
- Covers reports from mocha-trx etc

Updating readme and the js package

Minor doc updates and package update

Adding mocha-trx-reporter compatibility

• Fixing parsing bug when using trx files generated from the mocha-trx-reporter