FASTQC single-end data process doesn't specify number of threads

[jfy133]

This means we can't increase memory based on the the number of threads, the way fastqc likes it.

Should be added for single-end, as well paired-end to help it cope with large data

[jfy133]

Repoted by @marcel-keller

[jfy133]

Note: if it runs out of memory it hangs on:

Exception in thread "Thread-1" java.lang.OutOfMemoryError: Java heap space
	at uk.ac.babraham.FastQC.Utilities.QualityCount.<init>(QualityCount.java:33)
	at uk.ac.babraham.FastQC.Modules.PerTileQualityScores.processSequence(PerTileQualityScores.java:259)
	at uk.ac.babraham.FastQC.Analysis.AnalysisRunner.run(AnalysisRunner.java:89)
	at java.lang.Thread.run(Thread.java:748)

And never dies