Cloning this repository:

git clone git://gitorious.org/~taboularasa/tiled/taboularasas-arialias-tiled-qt-isostaggered.git taboularasas-arialias-tiled-qt-isostaggered
cd taboularasas-arialias-tiled-qt-isostaggered

Add this repository as a remote to an existing local repository:

git remote add taboularasas-arialias-tiled-qt-isostaggered git://gitorious.org/~taboularasa/tiled/taboularasas-arialias-tiled-qt-isostaggered.git
git fetch taboularasas-arialias-tiled-qt-isostaggered
git checkout -b my-local-tracking-branch taboularasas-arialias-tiled-qt-isostaggered/master_or_other_branch