#14 small change to random cards

[Bret]

I find it somewhat annoying to get the same card twice in a row - I don't retain those cards as well as cards where there is no immediate repetition. Using the 1.0 and 1.1 releases I've been skip repeated cards.

This isn't a bug, but I do find it to be a usability annoyance.

This patch slightly modifies DefaultLearnSession.gotoNextCard() so that it will only repeat a card if it is the last card in its shuffle set.

[Bret]

Patch to prevent repeated cards

[Riad Djemili]

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I think this is a good idea. I just changed the if-condition to "m_currentCard != null && countNextCards > 1 && countNextCards == m_cards.size()" to make it more precise. This way it should only handle the cases when there are only unlearned cards left to be learned.

Thanks for your contribution.