Missions screen view

Sometimes 'multiline' to be necessary for longer descriptions (some ships, systems, spaceports names or other language translations).

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assassination mission - #2124

- multiline for Target name
- multiline for Spaceport name
- multiline for System name/coordinates
- multiline for Ship name
- multiline for label "Target will be ..." <- I do not know, how to do this better :]

![screenshot-20130311-201512](https://f.cloud.github.com/assets/1929111/245432/0ee16f74-8a81-11e2-9081-b84ad081109e.png)

--
+taxi mission, additionally:
- multiline for System names/coordinates
- multiline for Group details

![screenshot-20130311-213743](https://f.cloud.github.com/assets/1929111/245875/846a9b46-8a8e-11e2-89a1-6bc80890d881.png)