Use 'value' array instead for 'min' and 'max' for more consistency

Author: mistic100

src/grammar.coffee

@@ -153,7 +153,7 @@ grammar =
   ]
 
   BetweenExpression: [
-    o 'Expression CONDITIONAL Expression',                -> new BetweenOp($1, $3)
+    o 'Expression CONDITIONAL Expression',                -> new BetweenOp([$1, $3])
   ]
 
   SubSelectExpression: [

src/nodes.coffee

@@ -151,8 +151,8 @@ exports.UnaryOp = class UnaryOp
   toString: -> "(#{@operator.toUpperCase()} #{@operand})"
 
 exports.BetweenOp = class BetweenOp
-  constructor: (@min, @max) -> null
-  toString: -> "#{@min} AND #{@max}"
+  constructor: (@value) -> null
+  toString: -> "#{@value.join(' AND ')}"
 
 exports.Field = class Field
   constructor: (@field, @name=null) -> null