Fixed completion/progression problems with quests "Mom, The Adventurer?" and "The Signpost Marks the Spot".

Strangely, the 2nd quest does not require the 1st in retail and if you attain enough fame without ever flagging it you can miss the 1st quest forever  o_O  I actually did this on a retail char I tested with and had to use another in order to check how the game behaves with both quests flagged at the same time.