Raised some memory

public/biopet-extentsions/src/main/scala/nl/lumc/sasc/biopet/extensions/picard/CollectGcBiasMetrics.scala

@@ -53,6 +53,8 @@ class CollectGcBiasMetrics(val root: Configurable) extends Picard with Summariza
   @Argument(doc = "IS_BISULFITE_SEQUENCED", required = false)
   var isBisulfiteSequinced: Option[Boolean] = config("isbisulfitesequinced")
 
+  override def defaultCoreMemory = 5.0
+
   override def beforeGraph() {
     super.beforeGraph()
     if (outputChart == null) outputChart = new File(output + ".pdf")

public/biopet-extentsions/src/main/scala/nl/lumc/sasc/biopet/extensions/picard/CollectMultipleMetrics.scala

@@ -33,7 +33,7 @@ class CollectMultipleMetrics(val root: Configurable) extends Picard with Summari
 
   javaMainClass = new picard.analysis.CollectMultipleMetrics().getClass.getName
 
-  override def defaultCoreMemory = 6.0
+  override def defaultCoreMemory = 8.0
 
   @Input(doc = "The input SAM or BAM files to analyze", required = true)
   var input: File = null