cluster-management: add architecture section
Merge pull request #345 from robszumski/cluster-arch

cluster-management: add architecture section
Merge pull request #344 from josephschorr/master

Update setup instructions for new Redis config
Update enterprise registry initial setup to match coreupdate docs
Merge pull request #346 from demonbane/patch-1

Update enterprise registry initial setup to match coreupdate docs
Update index.md

Fixes minor typo in the 'Add User Manually' section of the 'Adding Users' document: s/toll/tool
Merge pull request #347 from lamielle/patch-1

Update index.md
Update openstack docs regarding explicit network

Testing on RDO Icehouse, I find that the system requires me to explicitly define the network if more than one exists. 
Adding a note about it here for future adventurers.
Merge pull request #349 from bhale/patch-1

Update openstack docs regarding explicit network
Update index.md

Update ConditionMachineMetadata to be MachineMetadata to match current docs. It appears that X-ConditionMachineMetadata was the old name but this example was only partially updated (Just X- was removed).  Later exaples use MachineMetadata, so this is consistent with them.
Merge pull request #350 from lamielle/master

Update index.md
btrfs-troubleshooting: balancing, add new device and disable COW"
gce: switch to gcloud
Merge pull request #342 from robszumski/gcloud-round2

gce: switch to gcloud
it's -> its
Merge pull request #351 from dminkovsky/master

it's -> its
Merge pull request #348 from robszumski/btrfs

btrfs-troubleshooting: balancing, add new device and disable COW
debugging: don't capitalize btrfs
digital-ocean: add stable image
Typo fix :lipstick: