Update test script in package.json to run tests
Update test script in package.json to run tests

The `test` script in `package.json` was just a dummy. But we provide
proper tests by running `grunt test`.

This patch updates `package.json` to have a proper `test` script.

AllenBW/angular-patternfly,AllenBW/angular-patternfly,patternfly/angular-patternfly,dtaylor113/angular-patternfly,jeff-phillips-18/angular-patternfly,patternfly/angular-patternfly,AllenBW/angular-patternfly,spadgett/angular-patternfly,dtaylor113/angular-patternfly,jeff-phillips-18/angular-patternfly,dtaylor113/angular-patternfly,patternfly/angular-patternfly,jeff-phillips-18/angular-patternfly,spadgett/angular-patternfly,spadgett/angular-patternfly