Issue #15: Adding test cases, spliting into categories etc
Issue #15: Adding test cases, spliting into categories etc

This commit improves the test cases by spliting them into the file and
url test cases for better clarity.

*	modified:   test/main.js
- Adding 2 blocks of describes for file and urls
- Making sure the tests show the different options.

hirasso/gulp-open,hirasso/gulp-open,stevelacy/gulp-open