major upgrade - app uses vep api_version to look for available cache types (ensembl, refseq, merged) and disables any from selection if not available; results page displays api version and selected cache database; vep wrapper captures vep.pl stderr for display on results page; added vcf 'filter' col to results page; enabled HGVS notation function

new vcf analysis section; moved ChartMaker to NGS::ChartMaker

moved ngs.pl startup script stderr & stdout to go to NGS/logs/deployment.log; made path to debug.txt explicit in NGS::VEP

updated README's