Fix issues with summary table when only outputs associated with BAM files are detected (i.e. when the detection doesn't pick up the names of any associated Fastqs); previously this could result in summaries with no data
Refactor and abstract setting of default fields for reporting into new methods for clarity - fields are set based on available outputs (should also close #106)
Adds a link to the full Qualimap RNA-seq HTML report in the per-sample reporting
Minor updates to improve reporting of some missing metrics
Various updates to the QC reporting: