Check at most 16 characters of the key. Fixes #7936

Signed-off-by: Hector Acosta <hector.acosta@gmail.com>
Fix unsupported regexp parameter in assemble
Use correct parameter name in error message.

The parameter is called `cron_file` but the error message uses `file` which is confusing.
ELB enhancements

* connection draining
* cross AZ load balancing
Update guides.rst
now compares permissions correctly
Fixed bug with environment path for homebrew_cask
Fix exec_command prototype for the plugin
CODING_GUIDELINES: Fix typo: / => \
Merge pull request #7974 from msabramo/CODING_GUIDELINES_slash_to_backslash

CODING_GUIDELINES: Fix typo: / => \
Correct typo: 'manaul' to 'manual'
Merge pull request #7981 from adamnbowen/patch-1

Correct typo: 'manaul' to 'manual'
Merge pull request #7972 from mscherer/fix_lxc

libvirt_lxc: Fix exec_command prototype for the plugin
ec2_ami_search: new EBS types

In ec2_ami_search module, add support for the new SSD-backed EBS (ebs-ssd)
volume as well as support for provisioned IOPS (ebs-io1).
fix swap translation on 4.x openbsd with 2.5.4 python
nova.py: Remove DOCUMENTATION block

@mpdehaan said that nothing uses them at
https://github.com/ansible/ansible/pull/7988#issuecomment-47600006
Correct typo: 'additioanl' -> 'additional'
Correct typo: 'receords' -> 'records'

I should read more than a sentence at a time when I'm correcting typos—sorry for the typo correction spam ;)
nova.py: indented and sorted JSON output
added missing force flag on mkfs commandline

even if the option ```force=yes``` is used in the playbook, it is not reflected in the mkfs command line.
As force option is dependent of the fs type, a "if-then-else" case have been added. Also, some FS types does not have a force option.