If --extra-vars starts with either a '{' or a '[', it will be assumed
we are dealing with JSON and parse the data as such.

document in the man-page that {ansible,ansible-playbook} -M can also be overriden with the ANSIBLE_LIBRARY environment

page.

check path is directory
added manpage & setup
small cleanup
shut up module_formatter in utils to avoid trace print on crud files in library

- added the ANSIBLE_CONFIG environment variable

chapter 3 manpage source does not belong in git because it includes datestamps that constantly change.  Willing to re-add if datestamps
are removable.

Library functions and modules should be in the 3 man page section. Also the files should end in '.3'

Add a basic ansible-pull man page.

Add the example playbooks/scripts to the RPM package.

Closes #841