Update default memory settings

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

@@ -15,6 +15,8 @@ class CollectMultipleMetrics(val root: Configurable) extends Picard with Summari
 
   javaMainClass = new picard.analysis.CollectMultipleMetrics().getClass.getName
 
+  override val defaultCoreMemory = 6.0
+
   @Input(doc = "The input SAM or BAM files to analyze", required = true)
   var input: File = null
 

public/biopet-framework/src/main/scala/nl/lumc/sasc/biopet/tools/BiopetFlagstat.scala

@@ -36,7 +36,7 @@ class BiopetFlagstat(val root: Configurable) extends ToolCommandFuntion with Sum
   @Output(doc = "summary output file", shortName = "output", required = false)
   var summaryFile: File = _
 
-  override val defaultCoreMemory = 2.0
+  override val defaultCoreMemory = 6.0
 
   override def commandLine = super.commandLine + required("-I", input) + required("-s", summaryFile) + " > " + required(output)
 

public/biopet-framework/src/main/scala/nl/lumc/sasc/biopet/tools/MergeTables.scala

@@ -32,7 +32,7 @@ class MergeTables(val root: Configurable) extends ToolCommandFuntion {
 
   javaMainClass = getClass.getName
 
-  override val defaultCoreMemory = 2.0
+  override val defaultCoreMemory = 6.0
 
   /** List of input tabular files */
   @Input(doc = "Input table files", required = true)