Use a name other than 'Distutils' for the python egg

[neverpanic]

setup.py currently calls setup with a name argument of 'Distutils'. That causes the installation to create a file named Distutils-1.0-py2.7.egg-info in the site-packages directory, possibly conflicting with the distutils package.

MobileDevice should choose its own unique name, such as 'MobileDevice'.