Switch vectors and maps over to curly braces from square braces to line up with C++11.

unittests/for_each_range.chai

@@ -1,3 +1,3 @@
-auto v = [1,2,3];
+auto v = {1,2,3};
 auto r = range(v);
 for_each(r, fun(x) { assert_equal(true, x>0); } )