add LociMap, refactor LociSet to use it
lots of half-complete refactoring of distribution code
wrapped up implementation, comments, cleanup
Merge pull request #31 from hammerlab/distributed-work

Distributed work (untested)
minor LociSet/Map cleanup, comments
very minor Pileup cleanup
some initial tests for LociMap
Merge pull request #36 from hammerlab/test-locimap

Some initial tests for LociMap
attempt to get LociMap[Long] to serialize. Something's still wrong though.
delete PileupVariantCaller, SlidingWindowVariantCaller. That functionality is now in DistributedUtil, in a functional instead of oop style.
More tests for LociMap
Merge pull request #37 from hammerlab/remove-sliding-window-variant-caller

delete PileupVariantCaller, SlidingWindowVariantCaller. That functionali...
Fix one bug, more tests
Merge branch 'master' into more-locimap-tests
unneeded import
toIterator instead of toList
Merge pull request #38 from hammerlab/more-locimap-tests

More tests for LociMap
Serialize also the class in LociMapSerializer
Merge pull request #42 from hammerlab/fix_locimapserializer

Serialize also the class in LociMapSerializer
avoid java serialization through spark broadcast