Correct some spelling errors in English Race.datas

http://www.forum.birth-of-the-empires.de./viewtopic.php?p=32631#p32631
Correct a few errors in StringTable & MoralEvents

http://www.forum.birth-of-the-empires.de./viewtopic.php?p=32630#p32630
http://www.forum.birth-of-the-empires.de./viewtopic.php?p=32631#p32631

* Correct a few spelling errors in StringTable.txt[de/en] and in
 MoraleEvents.data[en].

* Change from "Sternbasis" to "Sternenbasis" in StringTable.txt[de].