Problem:    Click in window toolbar starts Visual mode.
Solution:   Add the MOUSE_WINBAR flag.

Problem:    Cannot build with Ruby.
Solution:   Fix misplaced brace.

Problem:    W_WIDTH() is always the same.
Solution:   Expand the macro.

Problem:    W_WINCOL() is always the same.
Solution:   Expand the macro.

Problem:    Superfluous call to syn_get_final_id().
Solution:   Remove it. (Ken Takata)

Problem:    Syntax timeout not used correctly.
Solution:   Do not pass the timeout to syntax_start() but set it explicitly.
            (Yasuhiro Matsumoto, closes #2139)

Problem:    #if condition is not portable.
Solution:   Add defined(). (Zuloloxi, closes #2136)

Problem:    It is not easy to trigger an autocommand for new terminal window.
            (Marco Restelli)
Solution:   Trigger BufWinEnter after setting 'buftype'.

Problem:    The qf_jump() function is still too long.
Solution:   Split of parts to separate functions. (Yegappan Lakshmanan)