hdf5_der

[svn-r17232] Code improvement:
Added control variable to control the debugging output.
Changed default writer records to 200,000 since 1 million
took a long time to run in Linew. 200,000 still take 1.5minutes
to finish for linew to run.
Verified the error detection does work by making swrm_writer to
fail by setting the number of records to 10000.o

Tested:
Jam, amani and linew