Added DEFAULT_EXECUTABLE as a constant

vagrant module documentation

mysql_db: use --password= instead of -p in dump/import

small doc fix for 'make deb'

Updated and improved the documentation (examples)

Service module changed to terminate early if only enabled specified

Adding npm module

Provide functionality to work with Rackspace's public cloud

Expanded the documentation slightly.

Improved backrefs example in lineinfile.

Use DEFAULT_EXECUTABLE when no executable is passed to
_low_level_command_exec

Works as a standard constant - can be overridden in all the normal ways
and defaults to /bin/sh

Motiviation is for a user that only has /bin/bash in /etc/sudoers

Signed-off-by: Brian Coca <briancoca+dev@gmail.com>

Preliminary ability to use Jinja2 {{ }} to replace ${foo.bar} in playbooks.  Can't use both at the same time per line.

Typo in cloudformation module documentation.

postgresql_user: fix docstrings

Change documentation of "state" param to refer to user (role) state instead of
database state.

Change 2 function docstrings to reflect the code

Use aptitude safe-upgrade for apt upgrade=yes