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.

* Catch issues with invalid regions
* Ensure we send string only data as meta values in the rax module
* Add public_key/lookup example for rax_keypair
* Clean up import statements

Add version_compare filter

rax.py inventory script improvements

Expose the playbook to callback plugins

Use common file argument system previously implemented by @sivel for rax modules on the file modules as well (copy/file/template).
Application to other cloud providers would make very good sense.

Fixes #6842

Treat 255 errors from raw as dark host

ssh: propagate prompt to _communicate()

Fix a typo in the subversion module documentation

formatting

Add counter