Update salt config for apiserver to support Azure.
Add gce grain to salt config, change apiserver salt config.
Add unit tests for example syntax

Tests api/examples, examples, and any embedded json in readme.
Merge pull request #590 from smarterclayton/test_example_syntax

Add unit tests for example syntax
query minion's /healthz for sanity checking. Removing gcutil ssh to
VM, and check kubelet's status.
update github.com/fsouza/go-dockerclient
Merge pull request #589 from monnand/update-docker-client

update github.com/fsouza/go-dockerclient
Merge pull request #593 from dchen1107/cleanup

Query minion's /healthz for sanity checking.
Merge pull request #552 from MSOpenTech/azure-scripts

Update salt config for apiserver to support Azure.
Adds a flag to specify root working directory.

--root_dir specifies the directory kubelet will use for it's
procedures. Currently used for volume mounts.
Merge pull request #527 from Sarsate/rootdir-flag

Adds a flag to specify root working directory.