Revision 664826

-- Thrift Log File

Summary:
-- This is the thrifty version of Pillar's batch_writer
-- Cleaned up a lot of the code in batch writer and made it conform to Thrift's strict coding standards
-- Added TBufferedRouterTransport.h/cc to actually route messsages via readEnd() to the file writer. It's
   not quite as easy to route the messages in Thrift as it was in Pillar

Reviewed By: Slee

Test Plan: Tested by making sure that the file was recording data

Notes:
-- The real correctness test will be when I finish writing TLogFileTransport (pillar_logfile.cpp).