Add missing test files.

Problem:    When 'indentexpr' moves the cursor "curswant" not restored.
Solution:   Restore "curswant". (Sung Pae)

Problem:    Useless termresponse parsing for SGR mouse.
Solution:   Skip the parsing. (Hayaki Saito)

Problem:    'relativenumber is reset unexpectedly. (François Ingelrest)
Solution:   After an option was reset also reset the global value. Add a test.
            (Christian Brabandt)

Problem:    The dosinst.c program has a buffer overflow. (Thomas Gwae)
Solution:   Ignore $VIMRUNTIME if it is too long.

Problem:    Python threads still do not work properly.
Solution:   Fix both Python 2 and 3.  Add tests. (Ken Takata)

Problem:    Popup menu does not work properly with the preview window, folds
            and 'cursorcolumn'.
Solution:   Redraw the popup menu after redrawing windows. (Christian
            Brabandt)

Problem:    Compiler warnings in Perl code when building with Visual studio
            2012. (skeept)
Solution:   Add type casts. (Christian Brabandt, 2013 Jan 30)

Problem:    Lua version 5.2 is not detected properly on Arch Linux.
Solution:   Adjust autoconf. (lilydjwg)

Problem:    Compiler warning for tiny build. (Tony Mechelynck)
Solution:   Add #ifdefs around variable.

Problem:    Substitute with confirmation and then "q" does not replace
            anything.  (John McGowan)
Solution:   Do not break the loop, skip to the end.

Problem:    After setting 'isk' to a value ending in a comma appending to the
            option fails.
Solution:   Disallow a trailing comma for 'isk' and similar options.

Problem:    ":window set nu?" displays the cursor line. (Nazri Ramliy)
Solution:   Do not update the cursor line when conceallevel is zero or the
            screen has scrolled. (partly by Christian Brabandt)

Problem:    The " mark is not adjusted when inserting lines. (Roland Eggner)
Solution:   Adjust the line number. (Christian Brabandt)

Problem:    The color column is not correct when entering a buffer. (Ben
            Fritz)
Solution:   Call check_colorcolumn() if 'textwidth' changed. (Christian
            Brabandt)

Problem:    MzScheme: circular list does not work correctly.
Solution:   Separate Mac-specific code from generic code. (Sergey Khorev)

Problem:    Compiler warning for size_t to int conversion. (Skeept)
Solution:   Add type casts.

Problem:    "/[^\n]" does match at a line break.
Solution:   Make it do the same as "/.". (Christian Brabandt)

Problem:    MzScheme does not build with tiny features.
Solution:   Add #ifdefs.  Also add UNUSED to avoid warnings.  And change
            library ordering.

Problem:    Tiny build fails. (Tony Mechelynck)
Solution:   Adjust #ifdefs.

Problem:    New interactive :substutite behavior is not tested.
Solution:   Add tests. (Christian Brabandt)

Problem:    ":substitute" works differently without confirmation.
Solution:   Do not change the text when asking for confirmation, only display
            it.

Problem:    MzScheme interface doesn't work propely.
Solution:   Make it work better. (Sergey Khorev)

Problem:    After reloading a buffer the modelines are not processed.
Solution:   call do_modelines(). (Ken Takata)

Problem:    "\k" in regexp does not work in other window.
Solution:   Use the right buffer. (Yukihiro Nakadaira)

Problem:    When only using patches build fails on missing nl.po.
Solution:   Create an empty nl.po file.

Problem:    With 'relativenumber' set it is not possible to see the absolute
            line number.
Solution:   For the cursor line show the absolute line number instead of a
            zero. (Nazri Ramliy)

Problem:    Python threads don't run in the background (issue 103).
Solution:   Move the statements to manipulate thread state.

Problem:    Crash with specific use of search pattern.
Solution:   Initialize reg_buf to curbuf.

Problem:    Error when 'guifontwide' has a comma.
Solution:   Use gui.wide_font. (Taro Muraoka)

Problem:    Crash when mark is not set. (Dominique Pelle)
Solution:   Check for NULL.

Problem:    Windows: IME composition may use a wrong font.
Solution:   Use 'guifontwide' for IME when it is set. (Taro Muraoka)

Problem:    Drawing with 'guifontwide' can be slow.
Solution:   Draw multiple characters at a time. (Taro Muraoka)

Problem:    char2nr() and nr2char() always use 'encoding'.
Solution:   Add argument to use utf-8 characters. (Yasuhiro Matsumoto)

Problem:    Backwards search lands in wrong place when started on a multibyte
            character.
Solution:   Do not set extra_col for a backwards search. (Sung Pae)

Problem:    Compiler error for adding up two pointers. (Titov Anatoly)
Solution:   Add a type cast. (Ken Takata)

Problem:    When building with Gnome locale gets reset.
Solution:   Set locale after gnome_program_init(). (Christian Brabandt)

Problem:    ml_get error when searching, caused by curwin not matching curbuf.
Solution:   Avoid changing curbuf. (Lech Lorens)