Adjust dependencies. Turns out, Expo is broken with Pylons 1.0.x, revert Babel...

Adjust dependencies. Turns out, Expo is broken with Pylons 1.0.x, revert Babel to 0.9.4 now as problems are solved (and that version is fulfilled in Squeeze), drop ZSI as we don't use any ZSI code anymore

setup.py

@@ -13,13 +13,12 @@ setup(
     #author_email='',
     #url='',
     install_requires=[
-        "Pylons>=1.0",
+        "Pylons==1.0",
         "SQLAlchemy>=0.6",
         "Webhelpers>=0.6.1",
-        "Babel>=0.9.6",
-        "ZSI",
+        "Babel>=0.9.4",
         "python-debian>=0.1.16",
-        "soaplib==0.8.1"],
+        "soaplib>=0.12"],
     packages=find_packages(exclude=['ez_setup']),
     include_package_data=True,
     test_suite='nose.collector',