remove argument added for debugging
add exclusion rule for spark's hadoop transitive dependency
RasterHadoopRDD cleanup
Refactored API to give back both the raw writables as well as Long,Raster
Merge remote-tracking branch 'upstream/master' into rdd-api-cleanup
Merge pull request #736 from ameetkini/rdd-api-cleanup

RasterHadoopRDD API Cleanup