Explain uniqueness requrement for handler task names.

Moving the make_sudo_cmd() calls back up to the action level so that connection
plugins don't have to know about it at all, and moving some of the become data
(prompt and success_key) into the ConnectionInformation object so they don't
need to be passed around needlessly.

Fixes #11611

new human_readable filter to transform bits and bytes into cake 

fixed first_available_found for template

added windows module checklist

hack to prevent tempalte/copy errors on vagrant synced folders 

Add homebrew to package managers' list

Update docs styling

Fixes #11255

Fixes #11606

fix AnsibleError object name in subelements plugin

fixes #11624

fixes 11607, override ansible_ssh_port in group/host_vars

profile_tasks.py requires CALLBACK_ constants or the v2 code doesn't pass the …

callbacks require a version constant or the v2 code doesn't pass the display param and it gives an error

now version_added < 1.3 does not get shown, up from 1.0
option's version_added is also now filterd against this threshold
module version_added is more prominent
exaples now uses pure rst instead of intermingled with html formatting
aliases now shown in description for options
bad version fields now throw warnings instead of exceptions
ansible-doc errors now show traceback in very very verbose mode, for easier debugging

devel breaks «gathering=explicit» setting in ansible.cfg

hacking/test-module updated to use new loader