erroneous c 'n p error for logical/bit operators in documentation

[Guido Saßmannshausen <sassmannshausen@…>]

table 2 and 3 under

​http://www.boostpro.com/tmpbook/preprocessor.html -> A.4.2 Arithmetic, Logical, and Comparison Operations

seem to be mistakenly identical. I would guess/expect that the bit logic operations would use |, &, and most importantly

[Steven Watanabe]

The macros BOOST_PP_BITAND etc, are not the equivalents of &, |, etc. The difference from the logical operators is:

The logical/ subdirectory contains the convenient Boolean token operations shown in Table A.2 and the more efficient operations shown in Table A.3, which require that their operands are either 0 or 1 (a single bit).