Specify PyPi dependencies, update url

setup.py

@@ -11,9 +11,10 @@ setup(
                       'python library.',
         author      = 'Martín Ferrari, Alina Quereilhac',
         author_email = 'martin.ferrari@gmail.com, aquereilhac@gmail.com',
-        url         = 'http://code.google.com/p/nemu/',
+        url         = 'https://github.com/TheTincho/nemu',
         license     = 'GPLv2',
         platforms   = 'Linux',
         packages    = ['nemu'],
+        install_requires = ['python-unshare', 'python-passfd'],
         package_dir = {'': 'src'}
         )