adding queequeg formula

queequeg is python script to perform grammar check on text files.

I don't know how to delete these 2 hugly unusefull commits from my pull request to have a cleaner one... If someone can tell me, i'll do it.

I commented the resource python-cdb installation from the file as it always crashes.
Using queequeg is possible without python-cdb, just slower. The caveat only explains how to install it with python-cdb activated.