Reporter not working with node.js v6.3.1

[vrockai]

The error I get is:

ERROR [karma]: TypeError: Path must be a string. Received undefined
    at assertPath (path.js:7:11)
    at Object.dirname (path.js:1326:5)
    at specSuccess.specSkipped.specFailure (/home/vrockai/workspace/dnastack-application/node_modules/karma-jenkins-reporter/index.js:97:31)
    at onSpecComplete (/home/vrockai/workspace/dnastack-application/node_modules/karma/lib/reporters/base.js:78:12)
    at .<anonymous> (/home/vrockai/workspace/dnastack-application/node_modules/karma/lib/events.js:14:22)
    at emitTwo (events.js:111:20)
    at emit (events.js:191:7)
    at emitter.emit (/home/vrockai/workspace/dnastack-application/node_modules/karma-angular-filesort/lib/index.js:29:17)
    at onResult (/home/vrockai/workspace/dnastack-application/node_modules/karma/lib/browser.js:216:13)
    at Socket.<anonymous> (/home/vrockai/workspace/dnastack-application/node_modules/karma/lib/events.js:14:22)

[m-lautenbach]

This fork seems to be deprecated.

[mguillem37]

add the environment variable REPORT_FILE in order to workarround this issue
ex (windows) c:> set REPORT_FILE=C:/Local/WORKSPACE/reports/tests/test-results-mg.xml

[mgenov]

+1 for merging of #4

[AlexShemeshWix]

+1 for merging of #4