Fixed duplicate call for file attributes checking

Added path expanding for dest in lineinfile
Added common file arguments to lineinfile so the module gets owner,
group, mode and SE options.
Decorated existing example to demonstate usage of file options and added
a couple more examples
Message is not set accordingly when file attributes were changed
'absent' handling code now handles the case where the file doesn't
exists (was issuing a Traceback before)
File attribute handling code has been added to the 'absent' handling
function too.
File attributes handling has been grouped in 'def check_file' since it's
required in both places.
'absent' mode now returns a message like it's counterpart 'present',
telling if file attributes were altered and if lines have matched.

Fix diff output vertical spacing

Fixes #2165.

pause: Fix small documentation glitch

Added more users of ansible (TCHPC and DRI)

uri: load JSON for content-type: application/json

document
check prefix of content-type and merge dicts
amend doc
load JSON into 'json' subkey

Adding ec2-related module example to examples/playbooks

fixes freebsd setup issues with jails

teach apt module to support --check mode

Add support for security group id parameter ISSUE #2029

Prevents PATH, PYTHONPATH etc... to be re-added.

Add support for security group id parameter, remove default for group name (since AWS already sets a default). ISSUE #2029

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

Fixes #2017.

mail module: properly set charset

sysctl module: fixed issue when checks_after fail on comparing keys with...

sysctl module: fixed issue when checks_after fail on comparing keys with values separated by white strings

sysctl module: fixed issue when checks_after fail on comparing keys with values separated by white strings

postgresql_user: Add support for PUBLIC

This change enables users to add and remove permissions to all roles,
using the PUBLIC user. This is equivalent to using the PUBLIC keyword
in GRANT and DENY postgres SQL commands.

For example, see: <http://www.postgresql.org/docs/current/interactive/sql-grant.html>

Fixes #1833

uri module doc fixes

Fixed remove_key

Correct ec2_vol doc errors