* DiD S3: Resolved Darken Volk speaking from the darkness at the end of the scenario (resolves#7758)
* Restore victory event changes for Darken Volk.
* Correct indentation.
The new tag takes ids instead of needing coordinates. So instead of storing
units or hardcoding values, an attack can be done like this:
```
[test_do_attack_by_id]
attacker=alice
defender=bob
weapon=0
[/test_do_attack_by_id]
```
Add a simpler unit for unit tests than the Elvish Archer / Orcish Grunt
combo, cherry-picked from gfgtdf's PR #7589. This is a unit with a 10x1
melee attack, and 0% defense on all terrains.
Remove the test race's undead_variation=
For testing custom plague abilities, this triggered a warning when
converting to any unit type that doesn't have variation_id=wolf,
restricting tests to using only Walking Corpse and Soulless.
I forget what abilities is the only who can use 'overwrite_specials' and what'filter_student' must ever checked instead of 'filter_self' in reference list
The early-exit optimization didn't take into account the shaded border area since only the
non-bordered draw area was saved. Attempting to save it caused other issues, and this is the
easiest way to fix the issue.
po: The rest of this commit message is for the translators' changelog, because
it's notes about what changed recently, as found by looking at fuzzies while
updating the German translation.
S01 "Come on, Kaleh, we have to go see if anyone is hurt or needs help. ..."
was just a grammar fix, of "answer to the call".
UtBS S08's dialogue had Esanoo refer to Melusand as "my master" repeatedly.
That changed to "leader" or "wise leader" in 1.15.4, mainly without other
changes in the text.
Other lines should have changed "master" to "leader". I'm planning to do that
later, but this commit is just the cherry-pick.
* S08 Zhul's "You don’t know where to find your master?"
* S08 Kaleh's two game-over lines because "too many merfolk have died"
UtBS S08 "You dare defy me?!..." : the change is just a typo fix
UtBS S10 "This will go much faster if you don’t interrupt me. ..." the one-word
change is from "the many" to "many" in the last sentence.
UtBS unit type Dawarf: the unit description had a grammar correction of "it's isn't"
(cherry picked from commit b42a1b83a1)
