Bulk Operation

PIG-966 Make StoreFunc an abstract class and create a mirror interface called StoreFuncInterface

PIG-966 \

PIG-966 Enhance HBaseStorage-- Make it support loading row key and implement StoreFunc

PIG-966 Temporarily disable failed unit test in load-store-redesign branch which have external dependency

PIG-966 Using TableInputFormat in HBaseStorage

PIG-966 Move splitable logic from pig latin to InputFormat

PIG-966 Make streaming work with the new load-store interfaces

PIG-966 Handle compressed file formats -- Gz, BZip with the new proposal

PIG-966 Fix unit tests corresponding to source changes so far

PIG-966 Update sources to reflect recent changes in load-store interfaces

PIG-966 change merge join and merge join indexer to work with new LoadFunc interface

PIG-966 ReversibleLoadStoreFunc interface should be removed to enable different load and store implementation classes to be used in a reversible manner

PIG-966 load-store-redesign branch: change SampleLoader and subclasses to work with new LoadFunc interface

PIG-966 allow store to overwrite existing directroy