patch 7.4.1639

Problem:    Invoking garbage collection may cause a double free.
Solution:   Don't free the dict in a partial when recursive is FALSE.

patch 7.4.1638

Problem:    When binding a function to a dict the reference count is wrong.
Solution:   Decrement dict reference count, only reference the function when
            actually making a copy. (Ken Takata)

patch 7.4.1637

Problem:    Can't build with older MinGW compiler.
Solution:   Change option from c++11 to gnu++11. (Ken Takata)

patch 7.4.1636

Problem:    When 'F' is in 'shortmess' the prompt for the encryption key isn't
            displayed. (Toothpik)
Solution:   Reset msg_silent.

patch 7.4.1635

Problem:    Channel test is a bit flaky.
Solution:   Remove 'DETACH' if it's there.

patch 7.4.1634

Problem:    Vertical movement after CTRL-A ends up in the wrong column.
            (Urtica Dioica)
Solution:   Set curswant when appropriate. (Hirohito Higashi)

patch 7.4.1633

Problem:    If the help tags file was removed "make install" fails. (Tony
            Mechelynck)
Solution:   Only try moving the file if it exists.

patch 7.4.1632

Problem:    List of test targets is outdated.
Solution:   Update to current list of test targets.

patch 7.4.1631

Problem:    Compiler doesn't understand switch on all enum values. (Tony
            Mechelynck)
Solution:   Initialize variable.

patch 7.4.1630

Problem:    Unicode table for double width is outdated.
Solution:   Update to the latest Unicode standard.