Update the unordered tests. Several changes including extra erase tests. The newer version of the containers have a hairy erase implementation, so need to test all the special cases. Also, a few extra tests here and there, avoid a couple of warnings and remove some old TODOs.

[SVN r3341]

test/container/compile_tests.hpp

@@ -17,7 +17,7 @@ typedef long double comparison_type;
 template <class T> void sink(T const&) {}
 
 template <class X, class T>
-void container_test(X& r, T& value)
+void container_test(X& r, T&)
 {
     typedef typename X::iterator iterator;
     typedef typename X::const_iterator const_iterator;