start using the hash for navigation

- numbered chr locations aren’t supported yet
Look up allele info from snppedia

Now, if a user jumps to a snp, we get the alleles from the reads they
are looking at and load up the specific summary of what that allele
means at that position.
Look up the allele complements when searching snpedia

Some variants are listed under say g,t when they actually map as c,a