More ACD Syntax manual corrections

[James Bonfield]

The calculated attributes are poorly defined between seqall and seqset.
The main table under the heading of "Ajax Data Types" lists totweight as
calculated in seqset, but not seqall. Also all of the sequence types have
nucleic as a calculated attribute.

Later on in the "Calculated Attributes" section another table is presented
where seqset is mislabeled as seqall. Nucleic is also missing from all of the
types shown.

Finally, dbifasta, dbiflat and dbigcg all use the keyword "is:" in ACD
expressions. For now I'm assuming that "is: $(dbname)" means $(dbname) != "".
Could is: be added to the documentation? (Perhaps it is, but searching for
"is" is lunacy, and is: finds nothing relevant.)

James

-- 
James Bonfield (jkb at mrc-lmb.cam.ac.uk)   Tel: 01223 402499   Fax: 01223 213556
Medical Research Council - Laboratory of Molecular Biology,
Hills Road, Cambridge, CB2 2QH, England.
Also see Staden Package WWW site at http://www.mrc-lmb.cam.ac.uk/pubseq/