[Tachyon-26] test UnderFileSystem.get() code path in Glusterfs Cluster.
Fix the dependency issue in gluster test profile;
Update gluster test instruction in glusterfs setup document.

Signed-off-by: rootfs <hchen@redhat.com>
add dnsmasq image to resolve dns among containers
add docker image with hdfs1.0.4 configured, base image is ubuntu:precise
add tachyon-base image containing tachyon configuration settings from base image: apache-hadoop-hdfs1.0.4-precise
add tachyon-master docker image from base image: tachyon-base
add tachyon-worker docker image from base image: tachyon-base
add shell script to start nameserver: dnsmasq-precise
add shell script to start tachyon cluster: tachyon-master and tachyon-worker
add shell script: deploy.sh to quickly deploy the docker cluster, using services from start_nameserver.sh and start_tachyon_cluster.sh
add shell script to kill tachyon-master and tachyon-worker running containers in docker
add script to re-build all images in this directory
add README
remove all sudo in build files, let the user control this
use glusterfs scheme for under fs address

Signed-off-by: rootfs <hchen@redhat.com>
fixes issues found in glusterfs test
on glusterfs, mkdirs on existing dir returns false. So a new unit test should delete the directory before mkdirs.
Not use glusterfs root path for unit test, change getUnderFilesystemAddress() to use sub dir.

Signed-off-by: rootfs <hchen@redhat.com>
use tachyon logo as bookmark ico

Signed-off-by: rootfs <hchen@redhat.com>
Merge pull request #330 from rootfs/favicon

use tachyon logo as bookmark ico
user 32x32 ico
Simple Javadoc fix for TachyonFile.readByteBuffer method which now take int as input argument
Merge pull request #331 from rootfs/favicon

user 32x32 ico