Ropes don't apply a climbing bonus by accident, but not their scripted bonus

[RMTEW FULL NAME]

When applying the climbing skill, the highest bonus given by any rope in the player's inventory would be used. Unfortunately, it was looking for the wrong value to use, and the one it did use had a default value of 2. So all ropes give a +2 climbing bonus, not their correct one (all current ropes give >2 bonus in theory).

[RMTEW FULL NAME]

Fixes #240. Ropes took wrong value and always gave a +2 bonus to climbing, rather than their higher correct bonus.

→ <<cset bdff3d98ca18>>