removed token is operator access function

the Token::isOperator() access function along with the Token::s_op[]
static array were removed; the isOperator() function was replaced with
the isType(Operator_TokenType) and where necessary also
isType(Command_TokenType)
modified regtest to check old translator expected results

when the translatorXXo.txt file is present, the results are compared
to this file instead of translatorXX.txt so that the test will pass
when using the old translator routines (this was done so that these
files do not need to be checked manually

also added translator03o.txt
changed open parentheses from being a unary operator

open parentheses being a unary operator causes problem with the new
translator routines; modified the old translator to not require open
parentheses to be a unary operator (moved the check for an open
parentheses to before the check for a unary operator)
corrected expression mode issues with old translator

The old translator routines needed to consider the initial state as an
operand state, allow for an empty command stack in the case of
expression mode, and assume any data type at the beginning of an
expression before any operands or unary operators are received

updated memtest script temporarily to look for old expected results
files when comparing results; added old expected results for translator
test #1