ec2: added ability to set EBS optimized instances

add replica_set attr to mongodb_user module

Adding bold to service doc to call up state and enabled.

This reverts commit 2bfaacd1.

Fixes #6821

Merge branch 'rax-clb-nodes-nodeid' of https://github.com/sivel/ansible into sivel-rax-clb-nodes-nodeid

Modified Cron to add AIX Crontab support

from mpdehaan and redone entirely.

Include changelog from previous release.

update changelog, these weren't major features so move to other section

Shared module docs for remaining rax modules

add distribution_major_version to fact gathering

Allow vault encrypted vars as extra_vars

cloudformation's disable_rollback must be a bool

passing "yes" to boto causes severe problems.

Update apt:deb with correct version

The docs site says this option is available in 1.5, but it is not.  

#5910 https://github.com/ansible/ansible/pull/5910 added the deb option.  The PR was generated two months ago (before 1.5) but was not included until after 1.5 was released.  This fixes the docs.

ec2_snapshot: fix for "unknown type number requested for wait_timeout"

apt_key: Output URL for debugging

Also added a new integration test for assemble using local assembly
with a delimiter.

This builds on GH-6359 and changes the logic so that a newline is only inserted between fragments if the previous fragment does not end with a newline.