Add RADOS Gateway support

This is a wip branch.
This works on Ubuntu precise, Debian Wheezy and CentOS 6.4.

Signed-off-by: Sébastien Han <sebastien.han@enovance.com>
Merge pull request #7 from leseb/wip-add-rgw

Add RADOS Gateway support
Reduce VM memory consumption

We now have 7 virtual machines in the Vagrant sandbox. This takes a lot
of memory. This might be a problem for some laptop and whon't help
testings.

Signed-off-by: Sébastien Han <sebastien.han@enovance.com>
Merge pull request #43 from leseb/feature-reduce-vm-memory

Reduce VM memory consumption
Improve README file

Clarify the support section, add OS support.

Signed-off-by: Sébastien Han <sebastien.han@enovance.com>
Merge pull request #45 from leseb/improve-read

Improve README file
Remove mon_initial_members option

The mon_initial_members is not used since we declare the mon section in
the ceph.conf file. Later, we could reduce the ceph.conf file by only
using the mon_host flag instead of all the mon sections.

Signed-off-by: Sébastien Han <sebastien.han@enovance.com>
Merge pull request #46 from leseb/fix-mon-initial-members

Remove mon_initial_members option
Initial add of haproxy example for fronting a number of radosgw's
more meaningful backend name
fix up indentation in configuration file
microformat variable to be in line with rest of roles and playbooks
make radosgw_interface configurable for haproxy
note what the radosgw_interface variable means
Fix typo in handler
re-tab/indent configuration
Merge pull request #47 from jcftang/wip-haproxy

Example HAProxy configuration