[ldapfeed] re-enable ldap tests for python 3.7
This was disabled because ldap3<2 wasn't compatible with python 3.7
While I'm here, drop unseless newline.
Document: cubicweb-doc
Title: CubicWeb Documentation
Author: Logilab
Abstract: Some base documentation for CubicWeb users and developers
Section: Programming
Format: HTML
Index: /usr/share/doc/python3-cubicweb-documentation/html/index.html
Files: /usr/share/doc/python3-cubicweb-documentation/html/*