[PATCH/RFC]Test environment for Git-MediaWiki

Hello all,

We are developing the test environment for the Git-MediaWiki project. For now, we have focused mainly on the environment with some simple test cases.

In this version, we have developed a script to install and delete a MediaWiki wiki easily. The environment provides shell functions to manage a wiki (fetch, delete, edit a page, compare the content of a page) and a git-mediawiki () repository. There are two simple test cases for git clone.

You can find all the code in our Github: https://github.com/Fafinou/git/wiki and how to install and run the tests.

We would like you to give us a lot of comments about our code :)

Note
* In this version we have a binary file "wikidb.sqlite" which contains 
an empty SQLite3 database. We know this is not a good thing to put a 
binary file in a repository so we will change this bad behavior later 
(we will generate the "wikidb.sqlite" file with a http request to the 
config page of MediaWiki)
* We will add simple test cases for pull and push the soonest

Thanks you in advance for your time ;)