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/puppet.py

@@ -1,19 +1,11 @@
 #!/usr/bin/python
 
 # Copyright (c) 2015 Hewlett-Packard Development Company, L.P.
-#
-# This module 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.
-#
-# This software 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 this software.  If not, see <http://www.gnu.org/licenses/>.
+# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
+
+from __future__ import absolute_import, division, print_function
+__metaclass__ = type
+
 
 ANSIBLE_METADATA = {'metadata_version': '1.0',
                     'status': ['stableinterface'],
@@ -120,18 +112,12 @@ EXAMPLES = '''
     tags: update,nginx
 '''
 
+import json
 import os
 import pipes
 import stat
 
-try:
-    import json
-except ImportError:
-    try:
-        import simplejson as json
-    except ImportError:
-        # Let snippet from module_utils/basic.py return a proper error in this case
-        pass
+from ansible.module_utils.basic import AnsibleModule
 
 
 def _get_facter_dir():
@@ -295,8 +281,6 @@ def main():
             rc=rc, msg="%s failed with return code: %d" % (cmd, rc),
             stdout=stdout, stderr=stderr)
 
-# import module snippets
-from ansible.module_utils.basic import *
 
 if __name__ == '__main__':
     main()