Removed the default push from gitconfig
Removed the default push from gitconfig

Git changed in 1.7.11 to include new options for the default push
method. Ubuntu 12.04.2LTS defaults to git 1.7.9, so I need to make this
work with both the older and newer Git versions. For now I've solved by
just removing the default push from the .gitconfig file.

matthewrankin/dotfiles,matthewrankin/dotfiles