Analysis fails if git repo has trailing slash

When cloning a repo with a trailing slash, Facade can't find the .git directory. This is because cloning a repo like this:

    git clone git://domain.com/git/reponame

puts the repo into a directory called reponame, but doing the same like this:

    git clone git://domain.com/git/reponame/

puts the repo into reponame/reponame.

This can be fixed by trimming the trailing slash.