2009-05-04  Dustin J. Mitchell <dustin@zmanda.com>
	* server-src/taper-mem-port-source.c
	  server-src/taper-disk-port-source.c: continue reading from the port
	  after the cache is exhausted, instead of terminating the part abruptly
	  (which can lead to insertion of spurious zeros into the dumpfile);
	  also remove some unnecessary assertions (g_return_val_if_fail)
	* server-src/taper-file-source.c: use correct unit on part size;
	  correctly calculate estimated number of parts
	* server-src/taper-port-source.c: replace assertion with 'if'