Regression, CLONE - Bad display of git output

A bug which was fixed before is back. Only difference is, that the lines appear in real time, not at the end of the checkout.

Clone a git repository using Go to File -> New File or Project... -> Project from Version Control -> Git Repository Clone
git will output the progress of the operation whereas Creator will not display anything until cloning finished. This is misleading as the user might think git got stuck.

Creator will then display lines like:

Checking out files:  54% (477/883)
Checking out files:  55% (486/883)
Checking out files:  56% (495/883)

This does not look nice at all. Instead, Creator should display the progress as the user would see it on the command line.