Uconf

===================

*Bugfix:*

* Fix backporting under Python3.5+

===================

*Misc:*

* Drop Python 2 compatibility
* Fix tests

*Bugfix:*

* Fix 'diff' mode when copying to a non-existent file
* Allow copying symlinks
* Add forward, backward, diffs for the ``symlink`` action.

===================

*Misc:*

* Insert Py3 compatibility
* Fix handling of with

===================

*Misc:*

* Replace ``pyfs`` with ``fslib``
* Switch packaging to setuptools

===================

*Bugfix:*

* Fix packaging

===================

*Bugfix:*

* Fix handling of 'elif' in files.