More public exports from croniter module

Author: kiorky

src/croniter/__init__.py

@@ -1,11 +1,20 @@
 # -*- coding: utf-8 -*-
 from __future__ import absolute_import
 
+from . import croniter as cron_m
 from .croniter import (
+    DAY_FIELD,
+    HOUR_FIELD,
+    MINUTE_FIELD,
+    MONTH_FIELD,
     OVERFLOW32B_MODE,
+    SECOND_FIELD,
+    UTC_DT,
+    YEAR_FIELD,
     CroniterBadCronError,
     CroniterBadDateError,
     CroniterBadTypeRangeError,
+    CroniterError,
     CroniterNotAlphaError,
     CroniterUnsupportedSyntaxError,
     croniter,