Quick fix 1.22 now on [default] branch

Just a quick fix for a potentially game breaking issue with one of the recent additions. Also replaced an axe head that wasn't up to par.

1.22

• Fixed a bug that could cause a wall to be placed at the exit of one of the outside areas in dungeon type 3.

• Replaced image for a t4 axe head and adjusted image for a t2 one.

• Set the minimum for equal attribute potion mixes to the average value of both +2, so as to always provide a benefit over drinking them individually. (eg.: 1+1=3 instead of 2)

• Made the dark gradient towards the edges of the initial loading screen match the screen resolution for resolutions greater than 1080p.

This update will upgrade your savegames upon loading. You will get a new dungeon floor of the appropriate level but your character and inventory will remain untouched.

To opt into the beta branch right-click Slasher's Keep in your games library, click Properties, then select Betas from the list on the left and finally select the beta branch from the drop-down menu.

Sorry for the tiny patch. I did do some work on more special rooms and such but ultimately decided against going forward with them. Those last ones turned out to be too much of an ordeal, bending the level generation script over backwards to make them work. If I do end up adding content in the future it will be the odd item or skill, but I wouldn't bet on it.

Anyway, let me know right here if this patch broke anything. I'll keep it up on the beta branch for a few days before switching it to default, just to be safe. Also, if you do get another game breaker, like a rogue wall blocking the way and you're sure it's not intentional, remember there's a reroll cheat. To use it hit F7 in the pause menu, then type "reroll", then reload your character from the main menu.

Edit: I've set the build live on the default branch.