Update of the groupid to reflect sub-project of www.gluster.org
Merge pull request #102 from childsb/groupid_change

Update of the groupid to reflect sub-project of www.gluster.org
[ci-skip]
Throw RuntimeException if a volume doesn't exist.
Merge pull request #103 from childsb/bz1108819

Throw RuntimeException if a volume doesn't exist.
[ci-skip]
Throw a better error message if attempting to access a directory without permission.
Add path to error message.
Merge pull request #104 from childsb/bz1105694

Throw a better error message if attempting to access a directory without...
[ci-skip]
Removed GlusterContainerExecutor, not required for hadoop-2.1
Merge branch 'master' into hadoop-2.1.0
Use the glusterfs:/// path in permission denied error message instead of filesystem path.
Neccessary amend to pull #96 - still throws exceptions in some cases
Update the release version field
Merge branch 'master' into hadoop-2.1.0
[ci-skip]
Throw an exception if the working directory or mapred.system dir doesn't exist. bz1115113
Merge pull request #105 from jayunit100/master

Neccessary amend to pull #96 - still throws exceptions in some cases
[ci-skip]