[wesnoth-i18n] String updates for 1.14.4

[Iris Morelle]

Hi,

There's just been a new pot update in preparation for the 1.14.4 release next 
weekend (Sunday July 15th 00:01 UTC). As always, please try to send your 
updated translations at least one day in advance so Ivanovic has the chance to 
see and merge your updates.

The new or changed strings include:

* A minor dialogue line addition in Dead Water to clarify scenario objectives.
* Several strings in campaign textdomains (as well as the main wesnoth 
textdomain) were changed to refer to merfolk in plural as "merfolk" instead of 
"mermen" where gender neutrality is desired.
* Minor rewording of a string in NR for clarification.
* Rewording of some strings in SotA for clarification.
* An addition of a ToD string to UtBS for the Long Dark time of day, without 
the numeric suffixes included in core.
* A few UI string additions for the boss battle scenario in UtBS.
* Typography fixes in the game help section, in particular for race 
descriptions changed in previous 1.14.x releases.
* Punctuation fixes in mainline campaigns and MP maps, removing extra periods 
where they are not appropriate (e.g. scenario objectives).
* Miscellaneous UI changes or improvements.
* A correction to the wesnoth(6) manpage where a keyword was not marked as 
such in the --log-<level> switch's documentation.

-- 
Regards
  Iris Morelle <shadowm/shikadiqueen>