manual/dehacked: overhaul. (#1127)

Continuation of #1091. Closes #1096. Hopefully addresses #992, subject to better terms from an actual Spanish speaker.

Corresponding changes have been added to Spanish translation using machine translation. All reasonable efforts have been used to try to vet the output so it actually makes sense but it will need an actual Spanish-speaking reader; I've got an alternate version that *only* does the obvious fixes (but will not address #992) if this turns out to be irredeemably bad.

**Obvious Fixes**
- Converts a few stray CxMy references.
- Updates some screenshots that still showed old assets.
- Fixes a lot of miscopypasted alt text.
- Does not claim DBSG to be "twice" as powerful.
- Adds Handgun pickup sprite.

**Terminology**
- Addresses #1096 by restoring abstract references to health and armour.
- Adds distinction between "refill" and "boost" for health.
- Gives pickup messages a distinct verb for each class of item being picked up.

**Clarifications**
- Much more explicitly describes certain monster and weapon behaviour, avoiding excess kayfabe where it may produce misleading descriptions.
- Makes the deceased name appear as the first element in all obituaries, and uses the same term for the "same" weapon where a monster is using an equivalent to a player weapon.
- Rewords some obituaries to better match the Freedoom monsters rather than the id ones.
- Emphasizes that the misconception is that Freedoom is *only* about providing a gratis IWAD, to better avoid the unintentional reading that it is a misconception that Freedoom is being provided gratis.

**Organization**
- Makes new sections for keys and the general introduction to how items work.
- Moves the colorblind section to right after the new key section.

**Putative Target Audience**
- Adds an explanation of what a source port is.
- Adds the "press Enter a bunch of times to start the game without reading anything" trick.
- Adds a warning about Chocolate Doom's savegame buffer overflow emulation.
- Adds a detailed tutorial walking the player through a live example of every type of ingame interaction.
- Rewrites all the controls-related help to presuppose a modern, post-WASD boomer shooter paradigm, doing away with the previous-century assumptions that you only had turn and forward/back and lateral movement was an unusual extra.

lumps/dehacked/dehacked.txt

@@ -156,20 +156,20 @@ STARTUP5========================================================================
 #else
 STARTUP5============================================================================\nThis is Freedoom, the free content first person shooter.\n\nFreedoom is freely redistributable under the terms of the modified BSD\nlicense. Check out the Freedoom website for more information:\n\n    https://freedoom.github.io/\n============================================================================
 #endif
-GOTARMOR = Put on a polaric shielding vest.
-GOTMEGA = Put on the attuned polaric energy armor.
-GOTHTHBONUS = Harvested an ectoplasmic polyp.
-GOTARMBONUS = Connected a polaric field emitter.
-GOTSTIM = Opened a roll of regenerative nanobot gauze.
-GOTMEDINEED = Nano-surgeried some really sensitive parts!
-GOTMEDIKIT = Applied a regenerative nano-surgery kit.
+GOTARMOR = Equipped a force field vest.
+GOTMEGA = Equipped the attuned force field armor.
+GOTHTHBONUS = Consumed a health boost.
+GOTARMBONUS = Equipped an armor boost.
+GOTSTIM = Consumed a small health refill.
+GOTMEDINEED = Consumed a large health refill. Not dead yet!
+GOTMEDIKIT = Consumed a large health refill.
 GOTSUPER = Ectoplasmic surge!
-GOTBLUECARD = Picked up a blue passcard.
-GOTYELWCARD = Picked up a yellow passcard.
-GOTREDCARD = Picked up a red passcard.
-GOTBLUESKUL = Picked up a blue skeleton key.
-GOTYELWSKUL = Picked up a yellow skeleton key.
-GOTREDSKULL = Picked up a red skeleton key.
+GOTBLUECARD = Secured the blue passcard!
+GOTYELWCARD = Secured the yellow passcard!
+GOTREDCARD = Secured the red passcard!
+GOTBLUESKUL = Secured the blue skeleton key!
+GOTYELWSKUL = Secured the yellow skeleton key!
+GOTREDSKULL = Secured the red skeleton key!
 GOTINVUL = Vanguard of the gods!
 GOTBERSERK = Smash them to pieces!
 GOTINVIS = Invisibility!
@@ -177,22 +177,22 @@ GOTSUIT = Rescue operations suit.
 GOTMAP = Area survey map.
 GOTVISOR = Low-light goggles.
 GOTMSPHERE = Negentropic surge!
-GOTCLIP = Picked up an ammo clip.
-GOTCLIPBOX = Picked up a box of ammo.
-GOTROCKET = Picked up a missile.
-GOTROCKBOX = Picked up a crate of missiles.
-GOTCELL = Picked up a small energy recharge.
-GOTCELLBOX = Picked up a large energy recharge.
-GOTSHELLS = Picked up some shotgun shells.
-GOTSHELLBOX = Picked up a box of shotgun shells.
-GOTBACKPACK = You found a backpack!
-GOTBFG9000 = The SKAG 1337 ... time to kick some ass!
-GOTCHAINGUN = You got the minigun!
-GOTCHAINSAW = You got the ripsaw!
-GOTLAUNCHER = You got the missile launcher!
-GOTPLASMA = You got the polaric energy weapon!
-GOTSHOTGUN = You got the pump-action shotgun!
-GOTSHOTGUN2 = You got the double-barrelled shotgun!
+GOTCLIP = Acquired a bullet clip.
+GOTCLIPBOX = Acquired a case of bullets.
+GOTROCKET = Acquired a missile.
+GOTROCKBOX = Acquired a crate of missiles.
+GOTCELL = Acquired a small energy recharge.
+GOTCELLBOX = Acquired a large energy recharge.
+GOTSHELLS = Acquired some shotgun shells.
+GOTSHELLBOX = Acquired a box of shotgun shells.
+GOTBACKPACK = A backpack for all your ammo storage needs!
+GOTBFG9000 = Got the SKAG 1337... time to kick some ass!
+GOTCHAINGUN = Got the minigun!
+GOTCHAINSAW = Got the ripsaw!
+GOTLAUNCHER = Got the missile launcher!
+GOTPLASMA = Got the polaric energy weapon!
+GOTSHOTGUN = Got the pump-action shotgun!
+GOTSHOTGUN2 = Got the double-barrelled shotgun!
 TAG_FIST = fist
 TAG_BFG9000 = SKAG 1337
 TAG_CHAINGUN = minigun
@@ -611,11 +611,11 @@ BGFLAT20 = FLAT5_6
 BGFLAT30 = SLIME13
 BGFLAT15 = AQF004
 BGFLAT31 = AQF021
-# Obituary texts, for ZDoom-based ports.
+# Obituary texts, for ports that use them.
 OB_STEALTHBABY = %o thought %g saw a technospider.
 OB_STEALTHVILE = %o thought %g saw a necromancer.
 OB_STEALTHBARON = %o thought %g saw a pain lord.
-OB_STEALTHCACO = %o thought %g saw a trilobite
+OB_STEALTHCACO = %o thought %g saw a trilobite.
 OB_STEALTHCHAINGUY = %o thought %g saw a minigun zombie.
 OB_STEALTHDEMON = %o thought %g saw a flesh worm.
 OB_STEALTHKNIGHT = %o thought %g saw a pain bringer.
@@ -624,41 +624,41 @@ OB_STEALTHFATSO = %o thought %g saw a combat slug.
 OB_STEALTHUNDEAD = %o thought %g saw an octaminator.
 OB_STEALTHSHOTGUY = %o thought %g saw a shotgun zombie.
 OB_STEALTHZOMBIE = %o thought %g saw a zombie.
-OB_UNDEADHIT = %o was punched by an octaminator.
-OB_IMPHIT = %o was slashed by a serpentipede.
-OB_CACOHIT = %o got too close to a trilobite.
-OB_DEMONHIT = %o was bitten by a flesh worm.
+OB_UNDEADHIT = %o was beaten up by an octaminator.
+OB_IMPHIT = %o was lacerated by a serpentipede.
+OB_CACOHIT = %o got trilo-bitten.
+OB_DEMONHIT = %o was eaten by a flesh worm.
 OB_SPECTREHIT = %o was eaten by a stealth worm.
 OB_BARONHIT = %o was torn open by a pain lord.
 OB_KNIGHTHIT = %o was gutted by a pain bringer.
 OB_ZOMBIE = %o was killed by a zombie.
-OB_SHOTGUY = %o was gunned down by a shotgun zombie.
-OB_VILE = %o was incinerated by a necromancer.
+OB_SHOTGUY = %o was perforated by a shotgun zombie.
+OB_VILE = %o was raised by a necromancer.
 OB_UNDEAD = %o couldn't evade an octaminator's fireball.
 OB_FATSO = %o was blasted by a combat slug.
-OB_CHAINGUY = %o was perforated by a minigun zombie.
+OB_CHAINGUY = %o was ventilated by a minigun zombie.
 OB_SKULL = %o was slammed by a hatchling.
-OB_IMP = %o was burned by a serpentipede.
-OB_CACO = %o was smitten by a trilobite.
-OB_BARON = %o was bruised by a pain lord.
-OB_KNIGHT = %o was splayed by a pain bringer.
+OB_IMP = %o was scorched by a serpentipede.
+OB_CACO = %o was zapped by a trilobite.
+OB_BARON = %o was nuked by a pain lord.
+OB_KNIGHT = %o was fried by a pain bringer.
 OB_SPIDER = %o stood in awe of the large technospider.
-OB_BABY = %o let a technospider get %h.
-OB_CYBORG = %o was splattered by an assault tripod.
+OB_BABY = %o was immolated by a technospider.
+OB_CYBORG = %o was mutilated by an assault tripod.
 OB_WOLFSS = %o met a sailor.
-OB_MPFIST = %k punched %o to death.
+OB_MPFIST = %o was beaten up by %k.
 OB_MPCHAINSAW = %o was shredded by %k's ripsaw.
-OB_MPPISTOL = %o was tickled by %k's handgun.
-OB_MPSHOTGUN = %o chewed on %k's boomstick.
-OB_MPSSHOTGUN = %k swapped two barrels upside %o's head.
-OB_MPCHAINGUN = %o was perforated by %k's minigun.
+OB_MPPISTOL = %o was killed by %k's handgun.
+OB_MPSHOTGUN = %o was perforated by %k's pump-action shotgun.
+OB_MPSSHOTGUN = %o was permeated by %k's double-barreled shotgun.
+OB_MPCHAINGUN = %o was ventilated by %k's minigun.
 OB_MPROCKET = %o was mutilated by %k's missile.
 OB_MPR_SPLASH = %o couldn't dodge %k's missile.
-OB_MPPLASMARIFLE = %o went QQ over %k's pew pew.
+OB_MPPLASMARIFLE = %o was immolated by %k's polaric energy weapon.
 OB_MPBFG_BOOM = %o had %p ass kicked by %k's SKAG!
 OB_MPBFG_SPLASH = %o couldn't hide from %k's SKAG.
 OB_MPTELEFRAG = %o stood where %k was teleporting.
-OB_RAILGUN = %o was railed by %k.
+OB_RAILGUN = %o was sniped by %k's railgun.
 OB_MPBFG_MBF = %o had %p ass kicked by %k's SKAG!
 # Quit messages.
 DOSY = (Press Y to exit the program.)