relax requirements to make it easier to install on debian

diff --git a/requirements/base.txt b/requirements/base.txt
index dd89f5c7055e4ec73c9b28c119c1c72c7f98c046..5ae0a19df79de08b4063e2a9aa4e5f4b07ee5612 100644 (file)
--- a/requirements/base.txt
+++ b/requirements/base.txt
@@ -1,12 +1,12 @@
 Django==1.6.5
 PyLD==0.5.4
-argparse==1.2.1
-httplib2==0.9
+argparse>=1.1
+httplib2>=0.8
 jsonschema==2.3.0
 keyring==3.8
-lxml==3.3.5
-numpy==1.8.1
-psycopg2==2.5.3
-pytz==2014.4
-requests==2.3.0
+lxml>=2.3
+numpy>=1.6
+psycopg2>=2.4
+pytz>=2011
+requests>=2.0
 wsgiref==0.1.2