include assembly in job name, don't connect to mysql DB at startup
Merge pull request #4 from dbolser-ebi/release/76

making ##reference optional
fix whitespace
add support for --old_maf
fix for parsing species list; dont connect to mysql db on startup
allow merge to work on multiple assemblies
add support for --only_refseq
oops allele and frequency wrong way around
replace only_refseq with all_refseq
revert HGVS 3' shift until e!77
move extra_headers to VEP module
allow features to be fetched if chr is LRG
export some extra methods, remove gene fetch from within prefetch_transcript_data
add assembly version to JSON output
rename assembly to assembly_name in JSON output
fix nuking of existing CSQ fields
dont remove CHR from patch chromosome names
fix and temporary hack for HGNC IDs missing from cache
skip dodgy looking frequency data
reverse sort to use lowest GT code in the rare case there may be duplicates