Pagerduty improvements

Conflicts:
	docsite/rst/guide_rax.rst
	plugins/callbacks/mail.py

Fixes #8512

Adds support for public_ip boolean for launch configurations.

ec2_asg: Implements the proper method for terminating an auto scale group.

win_setup improvements: Correcly outputs ansible_totalmem

ec2_vol: adds ability to list existing volumes

ec2: set type and default for ebs_optimized flag

apache2_module module fixes

rax: Move additional shared code into module utils

Error if private_key_file is group/world readable

Conflicts:
	lib/ansible/inventory/vars_plugins/group_vars.py
	plugins/callbacks/mail.py

ec2_ami_search: support for SSD and IOPS provisioned EBS images

made split 'smarter' but still overridable

reworded copy option docs

adding include_pattern and exclude_pattern options to ec2.py

Introduce an ansible_version dict as runner variable

mount module: execute the mount only after path validation

Fix parameters check for ec2_vol

Improved handling of already terminated instances

Pass region_name to nova_keypair