Fix install dependencies

- Use install_requires instead of requires, otherwise pip ignores it
- pylab is a non-existent package (use matplotlib instead)
- curses is part of the Python standard library (no need to install)
- Add h5py

setup.py

@@ -19,7 +19,7 @@
         'Topic :: Scientific/Engineering :: Astronomy',
         'Topic :: Software Development :: Libraries :: Python Modules',
         ],
-    requires=['katcp', 'pylab','matplotlib','iniparse', 'numpy', 'spead', 'curses', 'construct'],
+    install_requires=['katcp', 'matplotlib', 'iniparse', 'numpy', 'spead', 'construct', 'h5py'],
     provides=['corr'],
     package_dir = {'corr':'src'},
     packages = ['corr'],