rc5

• Variant calls for GDSC cell lines from Cell Model Passports
• Use harmonized drug response data from Pharmacodb rather than individual sources
• Fix BRCA Exchange allele definition bug
• Normalize all alleles using maf2maf. Individual transforms need only to submit a 'minimal' allele with genome, chromosome, start, ref and alt.
• Added Uniprot vertex with edges from Proteins. Edges contain percent identity.
• Fix DGIDB links to publications

rc4

Merge pull request #348 from bmeg/dgidb-filter

Remove duplicate associations from DGIdb