Updated install docs to include clush dependency

Author: aebruno

ChangeLog.rst

@@ -1,6 +1,11 @@
 ChangeLog
 ===========
 
+v0.0.4
+----------------------
+
+- Updated install docs to include clush dependency
+
 v0.0.3
 ----------------------
 

README.rst

@@ -5,9 +5,17 @@ STUBL - SLURM Tools and UBiLities
 STUBL is a collection of supplemental tools and utilitiy scripts for `SLURM
 <http://slurm.schedmd.com/>`_. 
 
------------
+-------------
+REQUIREMENTS
+-------------
+
+A few commands included in STUBL require `clush <http://cea-hpc.github.io/clustershell/>`_. 
+For rhel based systems clush is in `EPEL <https://fedoraproject.org/wiki/EPEL>`_. Debian 
+based systems can run *apt-get install clush*. 
+
+-------------
 INSTALL
------------
+-------------
 
 - To install STUBL download the `latest release <https://github.com/ubccr/stubl/releases>`_::
 
@@ -68,14 +76,14 @@ Summary of STUBL SLURM Commands
 - *sqstat*
 
   A customized version of squeue that produces output analogous to the PBS
-  qstat and xqstat commands.
+  qstat and xqstat commands (requires clush).
 
 - *fisbatch*
 
   Friendly Interactive SBATCH. A customized version of sbatch that provides a
   user-friendly interface to an interactive job with X11 forwarding enabled. It
   is analogous to the PBS "qsub -I -X" command. This code was adopted from
-  `srun.x11 <https://github.com/jbornschein/srun.x11>`_.
+  `srun.x11 <https://github.com/jbornschein/srun.x11>`_. (requires clush)
 
 - *sranks*
 
@@ -93,12 +101,12 @@ Summary of STUBL SLURM Commands
 - *sjeff*
 
   Determines the efficiency of one or more running jobs. Inefficient jobs are
-  high- lighted in red text.
+  high- lighted in red text (requires clush).
 
 - *sueff*
 
   Determines the overall efficiency of the running jobs of one or more users.
-  Users that are inefficient are highlighted in red text.
+  Users that are inefficient are highlighted in red text (requires clush).
 
 - *yasqr*
 
@@ -123,7 +131,7 @@ Summary of STUBL SLURM Commands
 - *slist*
 
   Retrieves SLURM accounting and node information for a running or completed
-  job.
+  job (requires clush).
 
 - *slogs*