Ziploader

* Ziploader proof of concept (jimi-c)

* Cleanups to proof of concept ziploader branch:

* python3 compatible base64 encoding
* zipfile compression (still need to enable toggling this off for
  systems without zlib support in python)
* Allow non-wildcard imports (still need to make this recusrsive so that
  we can have module_utils code that imports other module_utils code.)
* Better tracebacks: module filename is kept and module_utils directory
  is kept so that tracebacks show the real filenames that the errors
  appear in.

* Make sure we import modules that are used into the module_utils files that they are used in.

* Set ansible version in a more pythonic way for ziploader than we were doing in module replacer

* Make it possible to set the module compression as an inventory var

This may be necessary on systems where python has been compiled without
zlib compression.

* Refactoring of module_common code:

* module replacer only replaces values that make sense for that type of
  file (example: don't attempt to replace python imports if we're in
  a powershell module).
* Implement configurable shebang support for ziploader wrapper
* Implement client-side constants (for SELINUX_SPECIAL_FS and SYSLOG)
  via environment variable.
* Remove strip_comments param as we're never going to use it (ruins line
  numbering)

* Don't repeat ourselves about detecting REPLACER

* Add an easy way to debug

* Port test-module to the ziploader-aware modify_module()

* strip comments and blank lines from the wrapper so we send less over the wire.

* Comments cleanup

* Remember to output write the module line itself in powershell modules

* for line in lines strips the newlines so we have to add them back in

lib/ansible/module_utils/urls.py

@@ -81,6 +81,18 @@
 # agrees to be bound by the terms and conditions of this License
 # Agreement.
 
+import httplib
+import netrc
+import os
+import re
+import sys
+import socket
+import platform
+import tempfile
+import base64
+
+from ansible.module_utils.basic import get_distribution
+
 try:
     import urllib2
     HAS_URLLIB2 = True
@@ -151,8 +163,6 @@ if not HAS_MATCH_HOSTNAME:
 
     """The match_hostname() function from Python 3.4, essential when using SSL."""
 
-    import re
-
     class CertificateError(ValueError):
         pass
 
@@ -257,17 +267,6 @@ if not HAS_MATCH_HOSTNAME:
     HAS_MATCH_HOSTNAME = True
 
 
-import httplib
-import netrc
-import os
-import re
-import sys
-import socket
-import platform
-import tempfile
-import base64
-
-
 # This is a dummy cacert provided for Mac OS since you need at least 1
 # ca cert, regardless of validity, for Python on Mac OS to use the
 # keychain functionality in OpenSSL for validating SSL certificates.