timeit shows a speedup of ~3x on Python 2.7.5 x86_64.
It also makes the code a bit shorter.

New Callback Plugin: hipchat.py

corrections for Arch PKGBUILD

Fix typo

resolves #6494 - added note to page

"a the" -> "the"

Fix docs for faq

- correct spelling

Fix typo

Fix docs for playbooks_intro

Fix typo in example name

fixed bad detection of change on default and premature break

"resort" -> "result"

remove unnecessary period.

Made load_balencers in ec2_lc non-required as not all ASGs require an ELB

Add GCE guide and retool a bit to show the add_host interactions, improvements/upgrades are welcome.

Had to shoot the recently merged nova_group module in the head temporarily as it contained a dict comprehension, which means it can't work on all the platforms
and was also breaking docs builds on CentOS.  Will engage with list about that shortly.

Tests several ways to specify the repository.  For every repo added, the test
asserts that:

 * the apt-cache was updated as expected (depends on `update_cache` parameter)
 * the PPA key was installed (depends on `repo` format)

[apt_repository] Correct check_mode conditional logic

The desired behavior is to _not_ add the ppa signing key when check_mode is
enabled.  This fix corrects the conditional logic to comply with the stated
behavior.

Properly catch import errors in apt

When one accidentally tries to run this module as a user, he gets the error message that python-apt must be installed, no matter what. Because importing apt will trigger an exception as a regular user. Explicitly catching the ImportError will let the exception bubble. The exception clearly says Permission denied somewhere, and the user has a better idea, what he must fix.

apt_key: Fix traceback when key_id format is invalid

Fix documentation for accept_hostkey in GIT module

Documentation updates