Conflicts:

	library/system/debconf

Conflicts:

	library/packaging/cpanm

This fixes issue #6443

For those who may have a large number of certs found, this can reduce
the number of ssl connections attempted.

Previously, the function checked only for a single CA root cert, however
some distributions may have multiple certs in a directory. This will now
try any .crt or .pem file contained within several common paths for
each platform.

Fixes #6412

Use same implementation as ssh.py for "is in host file" checks in module code, prevents git module from adding keys more than once.

add module param to Network and sub-classes of Network, so that ansible 1.5.1 changes to LinuxNetwork apply to all Network classes.

Change-Id: I9b89d433b545269d111b3c290b6411aabf58dd24

Update apt module so that environment variables are set correctly since not going through shell.  Very sorry folks, it will be addressed.

* Adds another module utility file which generalizes the
  access of urls via the urllib* libraries.
* Adds a new spec generator for common arguments.
* Makes the user-agent string configurable.

Fixes #6211

Fixes #6331