v2.0.5 - Bugfix: renaming GeneCoverage file produced by RSeQC

process_qcstats.pl checks that the RSeQC output files have been successfully produced. The gene coverage output file names have changed from .coverage.geneBodyCoverage.* to .geneBodyCoverage.*
Have updated the gene_coverage subroutine RnaQC/Implement.pm to reflect this