Add simple quests.

[xairy]

Looks like a question mark on the map. When a player comes near the mark, it disappears and a few apples appear around.

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• Bitbucket: https://bitbucket.org/bmteam/pink-ponies/issue/51
• Originally Reported By: Andrey Konovalov
• Originally Created At: 2013-04-27T12:13:52.372