Renamed the flex operator to 'class'

libwccl/ops/functions/tset/getwordclass.h

@@ -22,13 +22,13 @@ public:
 	 * @returns Name of the operator, "flex"
 	 */
 	std::string name(const Corpus2::Tagset&) const {
-		return "flex";
+		return "class";
 	}
 	/**
 	 * @returns Name of the operator, "flex"
 	 */
 	std::string raw_name() const {
-		return "flex";
+		return "class";
 	}
 };