Removed the strexpr module and placed the implementation of the .STRING

builtin function into the NextTok function.
Added the .CONCAT function.


git-svn-id: svn://svn.cc65.org/cc65/trunk@113 b7a2c559-68d2-44c3-8de9-860c34a00d81

src/ca65/make/gcc.mak

@@ -25,7 +25,6 @@ OBJS =  condasm.o	\
        	options.o	\
         pseudo.o	\
         scanner.o	\
-	strexpr.o	\
         symtab.o	\
        	toklist.o      	\
 	ulabel.o