Bugs and inconsistencies in 1.09

[The Asker]

- Create Armour and Create Weapon:
costs 5 LP each to learn (dialogue says it will cost 4 LP)

- Arcane Arts book (level 2):
I have no (0) levels in that skill, still a message appears saying
that I already know about that skill -> either the player needs the
the first level in order to advance to the second (which should be
told) or the book is not about Arcane Arts

- Disarming Fire Traps:
the chance of disarming a fire trap is 40 %, still no attempt
(not a single one) was successful in over 50 times (reloaded after
every fail)

- Some quest items are not removed upon completion
(e.g. Rhys` book about thieving when given to Miller)