Add a trap detect marker that's visible regardless of whether you can see the tiles it's on.
Change stat-swap potions to temporary stat boosts.
(cherry picked from commit 1d9d9915f3f2d5b3676818884abf527a7eae9330)
Make 'u' the universal use command, 'U' uses a staff.  And make the univeral use command ignore the equipment
Make monster damage always visible in lore if the monster attack is visible.
Make a monster's AC appear after only one kill.
Various ring balance changes:
* Remove =susChr (first commented out in 2010)
* Replace rings of rFire & rCold with one ring, rFire&Cold
* Remove never-implemented =Dark
* Move =Flames/Ice/Lightning/Acid higher in the dungeon
* No rings are now native <DL10
Make TELEPORT flag trigger teleport 2x as often.
Tweak mushrooms: fast recovery heals some HP, clear mind heals 10SP.
Substantially increase duration of telepathy from ,SecondSight and rConf from ,ClearMind.
Double speed of Terror effect.
Change the way melee weapon + bow are displayed on character screen; put both to-hit values onto one line and the dam values on another
Make all DSM's breath weapons do at least 150 damage
Finish code changes necessary to remove CHR
Remove CHR from edit files.
Remove CHR from race/class definitions
Tone down gold drops to account for store prices being 10% lower on average.
Add a new template room type, Divisions
new distance function (closes #1118)
Remove divine spell Slow Poison