Use grunt.util.spawn to execute the grunt task. This makes sure grunt configuration set via grunt.option is properly read again
Pass verbose argument to grunt
Pass verbose argument to spawned grunt command
Make sure grunt-cli is installed on travis
Use child_process.spawn instead of grunt.util.spawn. Does the same, but easier to test the output
Merge pull request #5 from asgoth/master

Use grunt.util.spawn to execute the grunt task.