Some extra fixes

Apparently two bugfixes didn't go through with the previous update push, namely: [olist] [*] Stairs leading down in the Secret Room entrance in Graveville continued being impassable. [*] Wrong transfer event in Pandemonium Edifice secret room. [/olist] These (hopefully this time!) were fixed. Extra fixes: [list] [*] Soul mother's quest would not show as completed in the Quest Log. Now fixed. [*] Quest Log typo in quest: Lost Child was corrected. [/list] Thanks again to user scassy for everything. Please, validate the game's file through the Steam Library to be sure that you are playing on the latest build.