Add r^2 to results - SumEditor/SumParser

[swvanderlaan]

When running a QTL analysis - usually in cis with GWAS loci - we should always have the r^2 reported with the GWAS locus.
This is done when CLUMP="Y", but this should be done regardless. It is done using QTLSumEditor.py.
This connects to QTLSumParser.py, as since regular, non-clumped data does not have the r^2 plugged in, the QTLSumParser.py script cannot make the lists of interesting eGenes and eSNPs.