To Do:

While parsing the XML files (rewrite getObsHet), get the information to update these fields:

- for indels and segmental mutations
  - snpMap.chromStart / snpMap.chromEnd
  - snpMap.type  

- for all SNPs
  - snpMap.source (starting with build 120?)
  - dbSnpRsXX.allele1  / dbSnpRsXX.allele2  ??
  - dbSnpRsXX.observed / dbSnpRsXX.alternate ??
  - snpPop  - populations for frequencies
  - snpFreq - frequencies of snps in populations

Add validaton status to snpMap? (enum, of course) - requires UI update also