Users who use the command module for pretty much all shell commands may be stymied when they try using a command with <, >, $VAR, etc., and not know that they can use the `shell` module instead. This documentation fix clarifies this.
relative pathing comes in handy on occasion, particularly when
delegating to localhost and running some command out of your playbook
repo. Making use of os.path.abspath will allow for the full path to
chdir and executable to be discovered if not provided.
Migrated all examples: in DOCUMENTATION=''' string to standalone EXAMPLES=''' string
Added deprecation warning to moduledev.rst and remove deprecated example from it
Fixed up a few typos and uppercased some acronyms.
add consistency to how EXAMPLES are formatted
