[TACHYON-127] WIP: Create Tachyon Cluster via Vagrant 

This obsoletes #452 

While it is still work-in-progress, feedback is badly needed for this work. 

What's working?
We can start VirtualBox and AWS Tachyon cluster using HDFS 2.4.1 and glusterfs as under filesystem.

What next?
- more under filesystem (ceph, hadoop 1.0.4)
- more providers: OpenStack

@haoyuan @childsb @uronce-cc @dcapwell @hsaputra 
Wait for HDFS

```bash
until su - hdfs -c 'hdfs dfsadmin -report' ; do sleep 1; done;
```

Wait for yarn

```bash
until yarn node -list -all ; do sleep 1; done;
```