Fix ICU on Linux, and test it.

git-svn-id: https://www.unprompted.com/svn/projects/tildefriends/trunk@3343 ed5197a5-7fde-0310-b194-c3ffbd925b24

SConstruct

@@ -54,6 +54,7 @@ else:
 		os.path.join(v8, 'out/native/obj.target/src'),
 		os.path.join(uv, 'out/Debug/obj.target'),
 	])
+	env.Command('icudtl.dat', os.path.join(v8, 'out/native/icudtl.dat'), Copy("$TARGET", "$SOURCE"))
 
 ldapEnv = env.Clone()
 if sys.platform == 'win32':