Fix for C343-30, cursed scroll of destroy armor

* C343-30:   Cursed scroll of destroy armor on cursed armor doesn't always
             interact correctly.
             Author:  SGrunt
             Source:  https://github.com/sgrunt/GruntHack/commit/e7afc1b022dd5e1b39dd2c69db077b533e66f3f4
Fix for C343-109, Tourist leader's greeting

* C343-109:  There is a grammar error in the Tourist leader's greeting.
             Author:  SGrunt
             Source:  https://github.com/sgrunt/GruntHack/commit/6da48e6dd87737f1e207a2759e69075d62eb9569
Fix for 343-351, alchemy explosions

* C343-351:  Alchemy-caused explosions don't wake nearby monsters.
             Author:  SGrunt
             Source:  https://github.com/sgrunt/GruntHack/commit/63dbb6485ccc8df690cdbd8eb2cec4d0f30139e4
             Comment: The original patch makes two additional changes to
                      features present in GruntHack but not in vanilla.
Fix for C343-355, archeologist sling skill level

* C343-355:  Archeologists start out at basic skill level in sling.
             Author:  SGrunt
             Source:  https://github.com/sgrunt/GruntHack/commit/ccf75ee3bce3fe3295870c262ad28845e9f0bac8