deprecate Mutex::scoped_lock and scoped_try_lock and boost::condition

[viboes]

The Mutex::scoped_lock and scoped_try_lock make mutex types dependent from locks.

I would like to make them independent.

In addition they are there since 1.35. I think it is time the user moves to use the standard unique_lock.

The boost::condition condition is there since 1.35. I think it is time the user moves to use the standard condition_variable_any.

As usual, the user will have 6 releases to move. Two macros will be provided to enable/disable the inclusion of the deprecated features.

[viboes]

Committed revision [81667].

[kurt@…]

Please reconsider this as std::condition_variable doesn't have support for thread interruption.