Add zsh support for working dir independant sourcing

cloudformation parameters no longer required.

hostname module fix for RHEL5

return failed if a package couldn't be installed

Remove the 'host' module for now because the alias handling involves a bit too much automagic.  Proposal is to come up with a spec
of how it should work and accept to spec, using the existing patch (cherry-picked) as a baseline.

raise errors when omitted, updated changelog with new modules.

Changelog updates and a few module renames.  vpc -> ec2_vpc, githooks -> github_hooks, blacklist -> kernel_blacklist.  These are all new in 1.4 so safe to change.

replacing a \$ with $.

Improve Group.get_hosts() performance.

Remove stale references to 'latest' from docsite

left over from 0cd09dd5

Collect all stdout over ssh transport before returning data

Correct the constant name "remote_temp" to "remote_tmp"

Retrieve EC2 state when using newer versions of Boto

KeyError: 'delegate_to' lookup in sync module needs to be checked to see if defined for ad hoc

correct link to developing modules on ansiblework's website (part 2)

correct link to developing modules on ansible work's website

This reverts commit de2f4cf0, reversing
changes made to 2c33737b.

- reduce hosts group list to unique elements faster
- add a cache of already computed hosts group list

For some reason, on my test mandriva, urpmi --force return 0
even when it cannot install a rpm. So we have to explicitely check
if the package was properly installed with a loop

Various fix for the urpmi module

external executable, to avoid the cost of forking.
Since python-rpm is not automatically present, we still fallback
on the slower rpm fork method.

even when a package is already installed, since urpmi will
always return 0 wether it install or not.

Merge pull request #4927 from intellectronica/intellectronica/docker-identify-private-repos-backport

Update cloud/docker: if the image name containes a repository, strip it.

fix various typos in the documentation

When using repositories other than the main one at docker.io, the image name contains the repo name (which itself contains ":" as a separator between domain and port). We don't really care about it here, so just get rid of it before looking at the image name.

update npm-module to handle new node.js output

fix make tests to use the set of module from git checkout