Move the remaining plugin code from ipalib.plugins to ipaserver.plugins.
Remove the now unused ipalib.plugins package.
https://fedorahosted.org/freeipa/ticket/4739
Reviewed-By: David Kupka <dkupka@redhat.com>
Running make with PYTHON=/usr/bin/python3 will build/install the
bits for Python 3.
Executable scripts in ipatests have symlinks Python version suffixes
as per Fedora guidelines. Suffix-less names point to the Python 2 versions.
Reviewed-By: Jan Cholasta <jcholast@redhat.com>