[bugfix] Fix non-editable installations

... by listing all packages manually in setup.py

python/setup.py

@@ -29,7 +29,16 @@ setup(name='dune.perftool',
       description='Performance optimizing form compiler for dune-pdelab',
       author='Dominic Kempf <dominic.kempf@iwr.uni-heidelberg.de>',
       url='http://conan2.iwr.uni-heidelberg.de/git/dominic/dune-perftool',
-      packages=['dune.perftool'],
+      packages=['dune.perftool',
+                'dune.perftool.cgen',
+                'dune.perftool.generation',
+                'dune.perftool.loopy',
+                'dune.perftool.loopy.transformations',
+                'dune.perftool.pdelab',
+                'dune.perftool.sumfact',
+                'dune.perftool.ufl',
+                'dune.perftool.ufl.transformations',
+                ],
       install_requires=['dune.testtools', 'sympy'],
       tests_require=['pytest'],
       cmdclass={'test': PyTest},