Sync with 2.4 branch

Author: rocky

uncompyle6/parsers/parse26.py

@@ -132,6 +132,9 @@ def p_stmt26(self, args):
         ifelsestmtc ::= testexpr c_stmts_opt ja_cf_pop    else_suitec
         ifelsestmt ::=  testexpr stmts_opt ja_cf_pop      else_suite
 
+        stmts_opt ::= stmts
+        stmts_opt ::=
+
         # The last except of a "try: ... except" can do this...
         except_suite ::= stmts_opt COME_FROM JUMP_ABSOLUTE POP_TOP