First pass at ClassManifest -> ClassTag
Revert "First pass at ClassManifest -> ClassTag"

This reverts commit 2ee4d50797aeb28ddc85f8f93f3c3d4419ca1180.
ClassTag changes for JavaSparkContext
removed unused type parameter from FlumeInputDStream
Fixed classManifest and erasure deprecations
Merged ClassManifest2ClassTag