Making modifications to array fields, and adding documentation.
Merge pull request #24 from fnothaft/fix-docs

Making modifications to array fields, and adding documentation.
Adding script to publish JSON/AVDL schemas to bigdatagenomics.github.io.
Merge pull request #23 from fnothaft/publish-schemas

Adding script to publish JSON/AVDL schemas to bigdatagenomics.github.io.
Changing read to alignment record.