Remove Unicode ellipsis from map files

Summary: I have replaced Unicode ellipsis characters in files of the
maps/ folder of the public mod by ASCII characters (periods and commas).

Test Plan: I have successfully generated a random map on Atlas from the
Unknown map template on x86_64 Linux.

Reviewed By: elexis
Differential Revision: https://code.wildfiregames.com/D1210
This was SVN commit r20809.

binaries/data/mods/public/maps/random/extinct_volcano.json

@@ -2,7 +2,7 @@
 	"settings" : {
 		"Name" : "Extinct Volcano",
 		"Script" : "extinct_volcano.js",
-		"Description" : "[color=\"red\"]IMPORTANT NOTE: AI PLAYERS DO NOT WORK WITH THIS MAP[/color]\n\nA once fertile valley… desolated by the eruption of the long-dormant volcano in the heart of the region. Following years of empty, scorched deadness, signs of life started reappearing and spreading. Now the land is half-way to the full lushness of its former era. Alas, it is not to be: following a long stretch of drought, interminable rains have set in in the higher regions to the north. Water levels are rising at drastic levels, slowly forcing players to seek the high ground of the lesser, extinct volcanoes or the now again dormant great cone.",
+		"Description" : "[color=\"red\"]IMPORTANT NOTE: AI PLAYERS DO NOT WORK WITH THIS MAP[/color]\n\nA once fertile valley, desolated by the eruption of the long-dormant volcano in the heart of the region. Following years of empty, scorched deadness, signs of life started reappearing and spreading. Now the land is half-way to the full lushness of its former era. Alas, it is not to be: following a long stretch of drought, interminable rains have set in in the higher regions to the north. Water levels are rising at drastic levels, slowly forcing players to seek the high ground of the lesser, extinct volcanoes or the now again dormant great cone.",
 		"DisabledTemplates": [
 			"structures/ptol_lighthouse"
 		],

binaries/data/mods/public/maps/random/unknown.json

@@ -2,7 +2,7 @@
 	"settings" : {
 		"Name" : "Unknown",
 		"Script" : "unknown.js",
-		"Description" : "The unknown… Warning: May be a naval map.",
+		"Description" : "The unknown. Warning: May be a naval map.",
 		"BaseTerrain" : ["medit_sand_wet"],
 		"BaseHeight" : -5,
 		"Preview" : "unknown.png",

binaries/data/mods/public/maps/random/unknown_land.json

@@ -2,7 +2,7 @@
 	"settings" : {
 		"Name" : "Unknown Land",
 		"Script" : "unknown_land.js",
-		"Description" : "The unknown…",
+		"Description" : "The unknown.",
 		"BaseTerrain" : ["medit_sand_wet"],
 		"BaseHeight" : -5,
 		"Preview" : "unknown.png",

binaries/data/mods/public/maps/random/unknown_nomad.json

@@ -2,7 +2,7 @@
 	"settings" : {
 		"Name" : "Unknown Nomad",
 		"Script" : "unknown_nomad.js",
-		"Description" : "The unknown… Players start with only some citizen soldiers and female citizens. [color=\"red\"]Warning: The starting resources should be set at least at Medium.[/color]",
+		"Description" : "The unknown. Players start with only some citizen soldiers and female citizens. [color=\"red\"]Warning: The starting resources should be set at least at Medium.[/color]",
 		"BaseTerrain" : ["medit_sand_wet"],
 		"BaseHeight" : -5,
 		"Preview" : "unknown.png",