Merge latest unordered developments:

Make simple_test test a little more.
Use doubles for calculating max load factor.
Some workarounds, mostly for Borland and running the tests.


[SVN r42666]

test/exception/erase_exception_tests.cpp

@@ -42,7 +42,7 @@ struct erase_by_key_test1 : public erase_test_base<T>
 {
     void run(T& x) const
     {
-        typedef typename test::random_values<T>::const_iterator iterator;
+        typedef BOOST_DEDUCED_TYPENAME test::random_values<T>::const_iterator iterator;
 
         for(iterator it = this->values.begin(), end = this->values.end();
                 it != end; ++it)