remove unused bam/sam/fastq
remove unused bam/sam/fastq and modify used data
Vary test data
Further variation of data files; remove gitver
Changes file for release
Merge pull request #14 from KateTaylor/clean_data_files

Clean data files
Merge pull request #15 from wtsi-npg/devel

pull request from wtsi devel to master - release 49.4
Merge pull request #16 from wtsi-npg/master

pull request from wtsi master to devel (release 49.4)