Tweaks to Of2Reminders-batch.applescript

* Removed references to *default account* when creating Reminder. This caused errors when the default account did not contain the necessary task list, i.e., the default account is a local account and the desired list is associated with an iCloud account.
* Added `set theTasks to {}` to the end of the **repeat iContext** loop. If, within OmniFocus, Context1 had items and Context2 was empty, the items from Context1 would be placed in List1 as well as List2 inside Reminders.
* You'll want to rest `contextList` and `defaultList` as well. Sorry about that.