Add Homebrew module
RPM packaging: check properly if using RHEL5 or older
"nagios" module: fix NameError/'host' not defined

Add missing 'host' variable, which is read a few lines later on in some cases.
nagios module: add common locactions of icinga.cfg

Icinga should be compatible to Nagios (in our case the nagios module works well
with our Icinga installation)
Merge pull request #2428 from ciupicri/devel-rpm

RPM packaging: check properly if using RHEL5 or older
Merge pull request #2420 from robparrott/vagrant

added vagrant module with cleanup
Merge pull request #2424 from lwade/simples3

Basic groundwork for s3 module.
Merge pull request #2429 from b6d/nagios-module-fix

"nagios" module: fix NameError/'host' not defined
Merge pull request #2430 from b6d/nagios-module-icingacfg

nagios module: add common locactions of icinga.cfg
Merge pull request #2427 from andrew-d/andrew-add-homebrew

Add Homebrew module
Merge pull request #2418 from davehughes/pip-fix-run-directory

pip module - run from the system's temp directory to avoid permissions problem
Merge pull request #2412 from davehughes/task-expand-sudo-user

Added variable expansion to task sudo_user parameter
Merge pull request #2387 from bcoca/template_overrides_note

added docs about in template overrides
Merge pull request #2375 from sergevanginderachter/user-non-unique

Add nonunique option to user module, translating to the -o/--non-unique ...
Merge pull request #2356 from abulimov/lvol-patch

lvol patch for Debian Squeeze
Merge pull request #2355 from jcftang/macports

Teach the macports module to activate/deactivate packages
Merge pull request #2407 from jcftang/setup-osx-facts

Added osrelease and osversion as well as changed the way sysctl is calle...
Merge pull request #2406 from lorin/mysql-socket-doc

Document mysql_(user,db) login_unix_socket option
Merge pull request #2404 from lorin/mysql-mycnf-user

.my.cnf: default to login when no user specified
Merge pull request #2402 from dparalen/ec2_inventory_hostname_check

check hostname presence