[tox] Require ldap3 < 2 for server tests
Apparently we are using some constants that got dropped/moved in ldap3 >=
2.0.0 (which came out last week). So stay with version 1.4 until this gets
sorted out.
--- a/requirements/test-server.txt Wed Nov 02 11:11:01 2016 +0100
+++ b/requirements/test-server.txt Thu Nov 03 12:15:42 2016 +0100
@@ -1,5 +1,5 @@
psycopg2
-ldap3
+ldap3 < 2
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