RSEM: add module unload

modulefiles/RSEM/1.3.0

@@ -59,12 +59,18 @@ conflict $modname
 if [ module-info mode load ] {
   prereq Base/psmn
   module load python/2.7
-  prereq python/2.7
   module load Bowtie2/2.3.2
   module load R/3.0.2
+  prereq python/2.7
   prereq Bowtie2/2.3.2
   prereq R/3.0.2
 }
 
+if [ module-info mode remove ] {
+  module unload python/2.7
+  module unload Bowtie2/2.3.2
+  module unload R/3.0.2
+}
+
 prepend-path    PATH            $modroot/bin
 setenv          RSEM_PATH       $modroot/bin