Problem:    Parsing command modifiers is not separated.
Solution:   Move command modifier parsing to a separate function.

Problem:    Too many #ifdefs.
Solution:   Graduate the +vreplace feature, it's not much code and quite a few
            #ifdefs.

Problem:    All tab stops are the same.
Solution:   Add the variable tabstop feature. (Christian Brabandt,
            closes #2711)

Problem:    Too many #ifdefs.
Solution:   Graduate FEAT_LISTCMDS, no reason to leave out buffer commands.

Problem:    Enabling beval_term feature in Win32 GUI.
Solution:   Only enable beval_term in Win32 console.

Problem:    In the MS-Windows console mouse movement is not used.
Solution:   Pass mouse movement events when useful.

Problem:    FEAT_CURSORBIND and FEAT_SCROLLBIND are unused.
Solution:   Delete them.

Problem:    Too many #ifdefs.
Solution:   Graduate the +autocmd feature. Takes away 450 #ifdefs and
            increases code size of tiny Vim by only 40 Kbyte.

Problem:    No right-click menu in a terminal.
Solution:   Implement the right click menu for the terminal.

Problem:    Cannot use 24 bit colors in MS-Windows console.
Solution:   Add support for vcon. (Nobuhiro Takasaki, Ken Takasaki,
            fixes #1270, fixes #2060)