Added missing mission descriptions.

data/missions/alba/05 - alba defence #2.json

@@ -1,6 +1,6 @@
 {
 	"name" : "Alba Defence #2",
-	"description" : "",
+	"description" : "Tzac forces are continuing to make aggressive moves against Alba. Its forces need to be driven back, and out of the system entirely. Naval power is starting to come under strain, and these continued assaults could leave us vulnerable to a Pandoran attack."
 	"requires" : 50,
 	"background" : "gfx/backgrounds/background03.jpg",
 	"planet" : "gfx/planets/torelli.png",

data/missions/alba/06 - traitor hunt #2.json

@@ -1,6 +1,6 @@
 {
 	"name" : "Traitor Hunt #2",
-	"description" : "",
+	"description" : "While Trilliack is happy to arrest the traitors it brings in, Alba wishes to dole out swift punishment for their actions. Eliminate all enemy targets, with the exception of any fighters that surrender. Only those are to be brought in.",
 	"requires" : 57,
 	"background" : "gfx/backgrounds/background03.jpg",
 	"planet" : "gfx/planets/torelli.png",

data/missions/alba/07 - traitor hunt #4.json

@@ -1,6 +1,6 @@
 {
 	"name" : "Traitor Hunt #4",
-	"description" : "",
+	"description" : "Roman Burgess, one of the masterminds behind the illicit arms and information smuggling to Tzac, has been located. Senior command want this man alive, so that he can be interrogated and lead us to the others. He must not under any circumstances be allowed to be killed.",
 	"requires" : 57,
 	"background" : "gfx/backgrounds/background03.jpg",
 	"planet" : "gfx/planets/torelli.png",

data/missions/mace/03 - mace assault #3.json

@@ -1,6 +1,6 @@
 {
 	"name" : "Mace Assault #3",
-	"description" : "",
+	"description" : "There is growing public unrest over the on-going war, with a number of high-profile voices calling for an immediate end to the attacks on Tzac. While we cannot abandon the campaign while Tzac remains a threat, we can reduce the loss of life by disabling the enemy craft, instead of destroying them. That should placate the anti-war campaigners for a time.",
 	"requires" : 50,
 	"background" : "gfx/backgrounds/background05.jpg",
 	"planet" : "gfx/planets/tzac.png",

data/missions/trilliack/03 - traitor hunt #1.json

@@ -1,6 +1,6 @@
 {
 	"name" : "Traitor Hunt #1",
-	"description" : "",
+	"description" : "A number of those responsible for helping supply illegal arms and information to Tzac have been identified. They are to be tracked down, and brought in for questioning. At this point, we want to avoid killing them, as they could prove vital to bringing in the ringleaders.",
 	"requires" : 57,
 	"background" : "gfx/backgrounds/background05.jpg",
 	"planet" : "gfx/planets/flint.png",