Remove wildcard imports

Made the following changes:

* Removed wildcard imports
* Replaced long form of GPL header with short form
* Removed get_exception usage
* Added from __future__ boilerplate
  * Adjust division operator to // where necessary

For the following files:

* web_infrastructure modules
* system modules
* linode, lxc, lxd, atomic, cloudscale, dimensiondata, ovh, packet,
  profitbricks, pubnub, smartos, softlayer, univention modules
* compat dirs (disabled as its used intentionally)

lib/ansible/modules/system/debconf.py

@@ -1,25 +1,12 @@
 #!/usr/bin/python
 # -*- coding: utf-8 -*-
 
-"""
-Ansible module to configure .deb packages.
-(c) 2014, Brian Coca <briancoca+ansible@gmail.com>
+# (c) 2014, Brian Coca <briancoca+ansible@gmail.com>
+# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
 
-This file is part of Ansible
+from __future__ import absolute_import, division, print_function
+__metaclass__ = type
 
-Ansible is free software: you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation, either version 3 of the License, or
-(at your option) any later version.
-
-Ansible is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with Ansible.  If not, see <http://www.gnu.org/licenses/>.
-"""
 
 ANSIBLE_METADATA = {'metadata_version': '1.0',
                     'status': ['stableinterface'],
@@ -103,6 +90,9 @@ EXAMPLES = '''
     name: tzdata
 '''
 
+from ansible.module_utils.basic import AnsibleModule
+
+
 def get_selections(module, pkg):
     cmd = [module.get_bin_path('debconf-show', True), pkg]
     rc, out, err = module.run_command(' '.join(cmd))
@@ -191,8 +181,6 @@ def main():
 
     module.exit_json(changed=changed, msg=msg, current=prev)
 
-# import module snippets
-from ansible.module_utils.basic import *
 
 if __name__ == '__main__':
     main()