Do not pin psycopg version

yohanboniface · yohanboniface · commit 74ba8cc8adc3 · 2017-05-20T15:31:53.000+02:00
We want to let people use it whatever the version (until we find
a conflict version).
diff --git a/postgis/__meta__.py b/postgis/__meta__.py
@@ -1,6 +1,6 @@
 """Pyscopg helpers to work with PostGIS."""
 
-VERSION = (0, 1, 2)
+VERSION = (0, 1, 3)
 
 __author__ = 'Yohan Boniface'
 __contact__ = "yohan.boniface@data.gouv.fr"
diff --git a/requirements.txt b/requirements.txt
@@ -1 +1 @@
-psycopg2==2.6.2
+psycopg2
