[ADAM-309] Update to bdg-formats 0.2.0

- Some of the files have been renamed as part of the renames in
  bdg-formats
- I cleaned up some of the references in the files, as well as some of
  the IntelliJ complaints in the files
- Adding ClasspathFileLocator to allow testing local files
Merge pull request #342 from genomebridge/bdg-formats-0.2.0

[ADAM-309] Update to bdg-formats 0.2.0
Genome visualization
Frequency visualization
Merge pull request #346 from karenfeng/visnew

Genome visualization
Added web.xml
Merge pull request #347 from karenfeng/visfix

Bug fix for genome browser
Fix for a NullPointerException that occurs when the hostname in the Spark Task Metrics is null

It's not clear under what circumstances this happens, but I've seen it when a job was cancelled part-way through
Merge pull request #349 from nfergu/fixnpe

Fix for a NullPointerException when hostname is null in Task Metrics
[ADAM-326] Moved files over to S3 to prevent tests from failing