Fix memory

public/biopet-extensions/src/main/scala/nl/lumc/sasc/biopet/extensions/qiime/MergeOtuMaps.scala

@@ -38,7 +38,7 @@ class MergeOtuMaps(val root: Configurable) extends BiopetCommandLineFunction wit
 
   var failuresFp: Option[File] = None
 
-  override def defaultCoreMemory = 8.0
+  override def defaultCoreMemory = 4.0
 
   override def beforeGraph(): Unit = {
     super.beforeGraph()

public/biopet-extensions/src/main/scala/nl/lumc/sasc/biopet/extensions/qiime/MergeOtuTables.scala

@@ -36,6 +36,8 @@ class MergeOtuTables(val root: Configurable) extends BiopetCommandLineFunction w
   @Output(required = true)
   var outputFile: File = _
 
+  override def defaultCoreMemory = 4.0
+
   override def beforeGraph(): Unit = {
     super.beforeGraph()
     require(input.nonEmpty)