Fixes various typos, fetch_url now working, changed command composure for wait_for_service

Also:
* changed this module to use https for requests to the API
* fixed a bug in which a traceback was caused when the domain wasn't found

Fixes #6457

Fixes odd encoding problem with wait_for_service.

Additional test scenarios in roles/test_git

Testers may override the inventory and vars-file using the environment
variables 'INVENTORY' and 'VARS_FILE'.

Includes coverage for accept_hostkey and additional scm URL formats.

git: Execute git commands in `dest` directory

This fixes issue #6443

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

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

setup module: Mark unsafe commands as use_unsafe_shell=True.

Fixes #6393

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

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

This reverts commit 2a723e90.

Always run cleanup after running cloud_integration tests