Doesn't work with x-st of month

[sjurba]

val schedule = parse("first monday of month 09:00");
Fails:

Exception in thread "main" com.github.shyiko.skedule.InvalidScheduleException: "month" isn't a valid month
	at com.github.shyiko.skedule.internal.ScheduleImpl.parseMonth(ScheduleImpl.kt:113)
	at com.github.shyiko.skedule.internal.ScheduleImpl.parse(ScheduleImpl.kt:173)
	at com.github.shyiko.skedule.Schedule.parse(Schedule.java:36)
	at no.entro.subscriptions.scheduling.SchedulerKt.main(Scheduler.kt:8)
	at no.entro.subscriptions.scheduling.SchedulerKt.main(Scheduler.kt)

[sjurba]

FTR. I know you can use "first monday 09:00" instead, but using "of month" is more clear and is also supported and documented by GAE.

[shyiko]

Included in 0.4.0.