[TIMOB-14616] iOS: Ti.Calendar.getEventsInMonth uses 1-based months instead of 0-based

Issue

Ti.Calendar.getEventsInMonth (and presumably its other variants) expect a 1-based month number instead of 0-based on iOS (Android version uses 0-based).

Sample

See a CalendarTestcase.zip attached. This is the date I use to create the event:

var date = new Date(2013, 7, 15);
I.e. should be 0-based month 7, i.e. August.

And this is what it finds:

[INFO] : Search date: Sun Sep 15 2013 00:00:00 GMT+0200 (CEST)
[INFO] : 52843A09-9283-4382-B33B-08F760BC4171:0D931267-2858-49C5-B657-00A74566354C at 2013-08-14T22:00:00.000+0000: Titanium iOS Calendar Testcase

I.e. it finds the newly-created event looking for month 8. It should be the problem in one of the two functions. Best would be if the behaviour were the same across platforms, of course.

Additional details

Moreover, the docs don't mention one should call event.save() after calendar.createEvent() in order to have the event be actually saved on iOS (Android doesn't need this).