FIX: the macros from Red/System preprocessor could get corrupted in some cases.
FEAT: added new EQUAL_SYMBOLS? macro for case-insensitive comparison of two words.
FEAT: extended FUNCTION constructor to collect also iterator's counter words (intepreter only).
FEAT: changed meaning of EQUAL_SYMBOLS? macro and added EQUAL_WORDS? macro.

FUNCTION can now collect counter words from: repeat, foreach, forall. Support in compiler is pending.
Merge branch 'master' of github.com:dockimbel/Red