Refactored michelebologna's theme

Theme michelebologna refactored following Google's guidelines for scripts [ http://goo.gl/oJSXH2 ]:
* Using local variables [avoids name clashing with other scripts http://goo.gl/6Tv7r2 ] where possible (except for exports).
* Added comments on top of file to describe the features of the theme.

This is to resolve #2665