SOCServer.parseCmdline_DashedArgs: Stop if repeated parameters for -D, -o, dbUser, or dbPass; from master/e0e4899
Databases: Rename jsettlers-create.sql -> jsettlers-create-mysql.sql, add jsettlers-create-postgres.sql; from master/a0d4083
CREATEACCOUNT message: Check nickname vs SOCMessage.isSingleLineAndSafe at server and client; SOCServer.handleCREATEACCOUNT print audit message; javadocs. From master/49ab05c, 166ac03, a3bdeef