The user module now returns the output, both stdout and stderr, from
useradd, usermod, and userdel.  This should help debug cases why one of
those commands fail.  In addition, the user module will now call
fail_json() when the attempted command failed so as to properly
communicate a failure in a playbook.

Use iterative MD5 hashing.

Conflicts:
	lib/ansible/utils.py

This reverts commit 865796c3687cc06920ddf29890de991287dc50f6.

(Superseeded by next commit)

Switch to using hashlib or md5

Allows for efficient transfer of large files.  Templates do not sample first because they are small.

apt module to support --no-install-recommends

Getting the apt module to accept and understand a 'install-recommends' parameter which allows running apt with --no-install-recommends

copy module, return changed attribute seperate from md5sum

bump rpm spec to 0.6

adds 'groups' variable, essentially making hosts file accessible as a var

switch to shutil.copy rather than os.system(cp)

md5 allow copy if file is missing

Added IndexError catch for copy module, IndexError is thrown if a destin...

improve error trapping for md5

Allow variables in variables in templates

Fixed: executing templates outside playbooks