[COMMITTERS] pllolcode - pllolcode: Add support for NOOB values and NULL input

[User Eggyknap]

Log Message:
-----------
Add support for NOOB values and NULL input values, document what I need to do 
to support NULL return values

Modified Files:
--------------
    pllolcode:
        gram.y (r1.18 -> r1.19)
        
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pllolcode/pllolcode/gram.y.diff?r1=1.18&r2=1.19)
        pllolcode.c (r1.9 -> r1.10)
        
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pllolcode/pllolcode/pllolcode.c.diff?r1=1.9&r2=1.10)
        pllolcode.h (r1.15 -> r1.16)
        
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pllolcode/pllolcode/pllolcode.h.diff?r1=1.15&r2=1.16)
        pllolcode_symbol.c (r1.7 -> r1.8)
        
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pllolcode/pllolcode/pllolcode_symbol.c.diff?r1=1.7&r2=1.8)
        testFuncs.sql (r1.1 -> r1.2)
        
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pllolcode/pllolcode/testFuncs.sql.diff?r1=1.1&r2=1.2)

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