C343-345:  bad grammar when removing cursed lenses

* C343-345:  Attempting to remove cursed lenses gives a message with poor
             grammar.
             Author:  SGrunt (via Bulwersator)
             Source:  https://github.com/Bulwersator/UnNetHackPlus/commit/aba5543d03c5c0d914c51705d3166e8d5a687660
C343-383:  applying bullwhip at edge of map

* C343-383:  Applying a bullwhip while hero is at edge of map may cause a panic
             or crash.
             Author:  SGrunt
             Source:  https://github.com/sgrunt/GruntHack/commit/7831df3dda7f811c0609cba0523e6b24bdf1d23e
C343-406:  Misspelled coyote name

* C343-406:  One of the coyote names is spelled wrong.
             Author:  Bulwersator
             Source:  https://github.com/Bulwersator/UnNetHackPlus/commit/2304213f3e68baa89a539984cde950ded066ddd0
C343-409:  Unlocking a door that's really a mimic

* C343-409:  Unlocking a mimic pretending to be a door is not handled properly.
             Author:  SGrunt
             Source:  https://github.com/sgrunt/GruntHack/commit/18465ffea7214bff81ec5b5687222b63cdd7460b