fixed dependencies foe summary

public/biopet-core/src/main/scala/nl/lumc/sasc/biopet/core/summary/SummaryQScript.scala

@@ -96,22 +96,25 @@ trait SummaryQScript extends BiopetQScript { qscript =>
     val writeSummary = new WriteSummary(this)
 
     def addChecksum(file: File): Unit = {
-      if (writeSummary.md5sum && !SummaryQScript.md5sumCache.contains(file)) {
-        val md5sum = new Md5sum(this) {
-          override def configName = "md5sum"
-          override def cmdLine: String = super.cmdLine + " || " +
-            required("echo") + required("error_on_capture  " + input.toString) + " > " + required(output)
-        }
-        md5sum.input = file
-        md5sum.output = new File(file.getParentFile, file.getName + ".md5")
-
-        // Need to not write a md5 file outside the outputDir
-        if (!file.getAbsolutePath.startsWith(outputDir.getAbsolutePath))
-          md5sum.output = new File(outputDir, ".md5" + file.getAbsolutePath + ".md5")
-
-        writeSummary.deps :+= md5sum.output
-        SummaryQScript.md5sumCache += file -> md5sum.output
-        add(md5sum)
+      if (writeSummary.md5sum) {
+        if (!SummaryQScript.md5sumCache.contains(file)) {
+          val md5sum = new Md5sum(this) {
+            override def configName = "md5sum"
+
+            override def cmdLine: String = super.cmdLine + " || " +
+              required("echo") + required("error_on_capture  " + input.toString) + " > " + required(output)
+          }
+          md5sum.input = file
+          md5sum.output = new File(file.getParentFile, file.getName + ".md5")
+
+          // Need to not write a md5 file outside the outputDir
+          if (!file.getAbsolutePath.startsWith(outputDir.getAbsolutePath))
+            md5sum.output = new File(outputDir, ".md5" + file.getAbsolutePath + ".md5")
+
+          writeSummary.deps :+= md5sum.output
+          SummaryQScript.md5sumCache += file -> md5sum.output
+          add(md5sum)
+        } else writeSummary.deps :+= SummaryQScript.md5sumCache(file)
       }
       //TODO: add more checksums types
     }