env-setup now takes a -q argument to run in quiet mode

Refactored hacking/test-module

1. uses optparse

2. has --debugger option

tested only with pdb on Python 2.7

Added code to allow insertion of boilerplate into modules to make them able to share lots of code, the result
should be a huge reduction of total ansible source, at a slight cost of difficulty in original module development.

We need to apply this now to all modules, but may need to have some exemptions to things like command, which should
subclass this module.

Adding a missing '~' to use the user's home directory instead of the root file system for the module arguments

from modules remotely when they fail to parse, and this is VERY useful data.

treated -D as a way to show stderr, and make sure modules don't include things on stderr.
Update docs and test module script to come into line.

It works like this:

{{ hostvars['127.0.0.1']['ansible_eth0']['ipv4']['address'] }}

independent of output, and can also see all the output nicely grouped together if we want
to reformat it or make summaries of statistics.

environment (ANSIBLE_{LIBRARY,HOSTS}) if defined.

Update manpages to represent this.

Also update the env-setup script to set ANSIBLE_{LIBRARY,HOSTS}.