[fix] Added round function in the safe_eval method

frappe/__init__.py

@@ -1327,9 +1327,10 @@ def safe_eval(code, eval_globals=None, eval_locals=None):
 	whitelisted_globals = {
 		"int": int,
 		"float": float,
-		"long": long
+		"long": long,
+		"round": round
 	}
-	
+
 	if '__' in code:
 		throw('Illegal rule {0}. Cannot use "__"'.format(bold(code)))