Avoid duplicates of the 'all' group when using inventory script.

Do not recreate an 'all' group when it is in the inventory script's
output, but use the one created upfront.
ec2 inventory script: Add a global group for EC2 and RDS instances when
listing EC2 inventory
add 'chars' parameter to password plugin to allow custom character set

It accepts comma separated list of names that are
either string module attributes (ascii_letters,digits, etc)
or are used literally

To enter comma use two commas ',,' somewhere - preferably at the end
Qoutes and double qoutes are not supported
filter out qoutes since they cause random errors
add check mode support

Could it be that easy or do I have missed something?
removed typo
typo
apt: pass child process stdout and stdout to m.fail_json() and m.exit_json().

Without this, this fails:

    - name: apt-get dist-upgrade
      action: apt upgrade=dist
      register: apt_get_contents

    - name: apt-get clean
      action: command apt-get clean
      when: apt_get_contents.stdout.find("0 upgraded") == -1

TASK: [apt-get clean] *********************************************************

fatal: [192.168.2.2] => error while evaluating conditional: {% if apt_get_contents.stdout.find("0 upgraded") == -1 %} True {% else %} False {% endif %}

FATAL: all hosts have already failed -- aborting
apt: do not consider not-removed and not-upgraded packages as changes.

If one pins a package and does a 'apt-get dist-upgrade' then the
output looks like:

    # apt-get dist-upgrade
    Reading package lists... Done
    Building dependency tree
    Reading state information... Done
    Calculating upgrade... Done
    The following packages have been kept back:
      cassandra
    0 upgraded, 0 newly installed, 0 to remove and 1 not upgraded.

The check for any changes made should only be on the 'upgraded' and
'newly installed' values and not include the 'to remove' and 'not
upgraded' values.
Enforce umask for cron module, so cron_file generated files are 0644.

Certain cron implementations get cranky if files in cron.* are group
writable.
apt: autoinstall python-apt if not available
DRY up dict conversion and fix serialization error
Remove unused variable
Correct documentation URLs
Merge pull request #4860 from jlaska/async_status_doc

Correct documentation URLs
Correcting the security group id lookup from the list of security group names
Merge pull request #4862 from rob-szew/devel

Correcting the security group id lookup from the list of security group ...
Merge pull request #4858 from sivel/rax-clb-serialize

Fix serialization error in rax_clb
Update README.md
Revert "Revert "Tiny RST link fix in modules documentation""

This reverts commit 658dc7a3661669c15f2b696651ae2522097b44f3.