function analyzejshint(sources, overrideRcFile) {
    var jshintrcFile = overrideRcFile || './.jshintrc';
    log('Running JSHint');
    log(sources);
    return gulp
        .src(sources)
        .pipe(plug.jshint(jshintrcFile))
        .pipe(plug.jshint.reporter('jshint-stylish'));
}
Execute JSHint on given source files
@param  {Array} sources
@param  {String} overrideRcFile
@return {Stream}