Added 'validate' feature to copy and template modules, now you can add a check to force copy to fail if the check fails.
had to add entry in file for it to accept as a option even though file itself ignores it.
Signed-off-by: Brian Coca <briancoca+dev@gmail.com>

Signed-off-by: Brian Coca <bcoca@tablethotels.com>

Added two additional template variables
* template_fullpath - absolute path to the template
* template_run_date - date that the template was rendered
Documented these additional variables in the module documentation

 - added terse syntax to modules.rst
 - added description of special variables to template module

Various performance streamlining and making the file features usable in all modules without daisy chaining.

Setup module no longer saves to disk, as templates are mostly useful in playbooks and this allows lots of simplifications
around file pathing and removes occasional permissions conflicts depending on how things are used.

Python 2.4 (RHEL 5) does not know 'as'.

module so that if a directory path is specified we get valid output

all modules take a common parameter name.  But more or less we still work idempotently
in modules.

module works differently now

starter manpage for modules

allow template file location to be passed into template & setup modules

also fix a bug/typo in the reporting from playbook

Cleanup is due in runner.py