Reorganizing changelog, some cleanup still needed, but now it's easier to tell what is in the release :)

updated indentation and redundant comment.

bumping up min_count value.

I've uncommented and added a very little supporting stuff based on skvidal's work to allow us to launch more than one instance.

Fixed apt_key's add_key stalling indefinitely, and test code leaking into production

Add basic pkgin package management

ec2 facts module - registers to ansible_facts key

Git module: fix for relative paths

If a relative path is passed as an argument, this change first
converts it to an absolute path.

This fixes a bug where the git module would attempt to chdir into an
invalid directory because of multiple chdir calls against a relative
path.

This also fixes an issue where some console output for packages I was
installing was creating invalid JSON because it contained single-quotes.

Fixes #1918.

Inventory class - lambda fails on attribute access - g.name is a string not the group obje...

Adds user-selectable hash merging support in vars

Port ec2 module to Boto

Update docsite/rst/who_uses_ansible.rst

Added Eucalyptus.

Tests used heavily mocked version of the apt_key code, which meant that
it didn't properly test real life scenario.

Fixes #1902.

Fixes #1908.

pkgin always returns 0 so can't be used to tell if the install or remove
worked.  Instead this just queries the installed packages after
performing an operation.

Update apt_repository to query if repo is already configured

Update examples/playbooks/ansible_pull.yml

Typo

This adds two dependencies to the apt_repository module:  apt and
apt_pkg.  These come from the package python-apt.  This is used to parse
the host's sources.list and examine whether the repo is already
configured.  This then eliminates the unnecessary
'add-apt-repository --remove' from running.

No need for deep copy (vars are essentially immutable once loaded, there
should not be any modifications)

Minor doc fix: service module 'state' parameter comments should be processed by RST