New lookup plugin csvreader
synchronize: allow ansible_ssh_host to be templated

This is already enabled in the runner also.
Don't modify hgrc when running purge
Allow multiple users to use ec2 inventory scripts

Move the ec2 cache files from a shared /tmp location to the
user's ansible tmp directory.
module(apt_key): don't catch `SystemExit`

If we do this, we risk outputting two JSON payloads, which will be
unparsable.
module(nagios): don't catch `SystemExit`

If we do this, we risk outputting two JSON payloads, which will be
unparsable.
`env-setup` fix for zsh <= 4.3.10

This fixes issue #5026. It used to work. The regression was
introduced in 2b3381de7c6e0924b29123c33f0627a12418f2c8.
Fixed false positive on initctl as enable_cmd

Also on update-rc.d
In service module
Try to follow RFC2812 for waiting on serverl welcome and join messages before performing more tasks
module is not exposed to send_msg, but main() catches exceptions and uses module.fail_json
Initial commit of rax_dns module
Add state attribute to description
Remove errant raise
Initial commit of rax_dns_record
initial commit of a basic rolling upgrade guide, based on the lamp_haproxy example
flesh out the CI/CD and load balancer sections a bit
tweak some links and phrasing
tests depend on the default encoding being utf8

So we set the utils default encoding to be utf8
Fail EC2 inventory better with restricted EC2 users

If a user has full EC2 access but no RDS access, the user
should still be able to query the EC2 inventory, although
will not obtain any information about any RDS instances.
Add ec2_key module.