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/storage/infinidat/infini_fs.py

@@ -2,21 +2,11 @@
 # -*- coding: utf-8 -*-
 
 # (c) 2016, Gregory Shulov (gregory.shulov@gmail.com)
-#
-# This file is part of Ansible
-#
-# 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/>.
+# 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': ['preview'],
@@ -52,6 +42,8 @@ options:
     required: true
 extends_documentation_fragment:
     - infinibox
+requirements:
+    - capacity
 '''
 
 EXAMPLES = '''
@@ -69,14 +61,14 @@ EXAMPLES = '''
 RETURN = '''
 '''
 
-HAS_INFINISDK = True
 try:
-    from infinisdk import InfiniBox, core
+    from capacity import KiB, Capacity
+    HAS_CAPACITY = True
 except ImportError:
-    HAS_INFINISDK = False
+    HAS_CAPACITY = False
 
-from ansible.module_utils.infinibox import *
-from capacity import KiB, Capacity
+from ansible.module_utils.basic import AnsibleModule
+from ansible.module_utils.infinibox import HAS_INFINISDK, api_wrapper, get_system, infinibox_argument_spec
 
 
 @api_wrapper
@@ -145,6 +137,8 @@ def main():
 
     if not HAS_INFINISDK:
         module.fail_json(msg='infinisdk is required for this module')
+    if not HAS_CAPACITY:
+        module.fail_json(msg='The capacity python library is required for this module')
 
     if module.params['size']:
         try:
@@ -170,7 +164,5 @@ def main():
         module.exit_json(changed=False)
 
 
-# Import Ansible Utilities
-from ansible.module_utils.basic import AnsibleModule
 if __name__ == '__main__':
     main()