Bug Fixes:

Fixes required for figure '6.1 GC Content Distribution Per Sample'. Added dependency for R library hexbin to files configure.ac and README.md, loading of library hexbin in Sample_Report.rmd.in.
Fix required for figure '8.1 Frequency of reads in peaks'. Added a line to Sample_Report.rmd.in that renames values of the column dd to match the names of the values of the column dd (removes 'sorted.bam' from the names.).
bug fixes provided by Pia Rautenstrauch (rautensp)

Misc: