Draft Checksums Change

[ndp-opendap]

• For the dap4 data response, defines bit 3 (the fourth bit) of the first chunk header as a flag to indicate the presences of checksums in the serialized data.
• Small reorganization to the Checksums discussion to capture the new checksums flag.

[DennisHeimbigner]

Do you also need to change line 1854?

with the encoding 0 = data, 1 = end, 2 = error, 4 = Little-Endian */

[ndp-opendap]

Do you also need to change line 1854?

with the encoding 0 = data, 1 = end, 2 = error, 4 = Little-Endian */

Yes thanks, change made...

[jgallagher59701]

I think this is a good change. Ready to merge.