Update .gitignore.

.gitignore

@@ -3,6 +3,7 @@
 *.la
 *.lo
 *.o
+*.mod
 *.log
 *.trs
 *.dSYM
@@ -25,5 +26,28 @@ Makefile
 libtool
 cdi
 createtable
-mo_cdi.mod
 build
+/tables/gen_tableheaderfile
+/tests/pio_cksum_asynch
+/tests/pio_cksum_cdf
+/tests/pio_cksum_fpguard
+/tests/pio_cksum_mpi_fw_at_all
+/tests/pio_cksum_mpi_fw_at_reblock
+/tests/pio_cksum_mpi_fw_ordered
+/tests/pio_cksum_mpinonb
+/tests/pio_cksum_writer
+/tests/pio_write_deco2d_run
+/tests/pio_write_run
+/tests/test_cdf_const
+/tests/test_cdf_transformation
+/tests/test_chunk_cksum
+/tests/test_cksum_extra
+/tests/test_cksum_grib
+/tests/test_cksum_ieg
+/tests/test_cksum_nc
+/tests/test_cksum_nc2
+/tests/test_cksum_nc4
+/tests/test_cksum_service
+/tests/test_f2003
+/tests/test_resource_copy_mpi_run
+/util/serialrun