patch 8.1.0301: GTK: input method popup displayed on wrong screen.

Problem:    GTK: Input method popup displayed on wrong screen.
Solution:   Add the screen position offset. (Ken Takata, closes #3268)

patch 8.1.0300: the old window title might be freed twice

Problem:    The old window title might be freed twice. (Dominique Pelle)
Solution:   Do not free "oldtitle" in a signal handler but set a flag to have
            it freed later.

patch 8.1.0299: misplaced comment

Problem:    misplaced comment
Solution:   Remove comment

patch 8.1.0298: window resize test sometimes fails on Mac

Problem:    Window resize test sometimes fails on Mac.
Solution:   Add Test_popup_and_window_resize() to flaky tests.

patch 8.1.0297: MS-Windows: tests fail, Vim crashes

Problem:    MS-Windows: tests fail, Vim crashes.
Solution:   Fix long file name handling.

patch 8.1.0296: command parsing for 'incsearch' is a bit ugly

Problem:    Command parsing for 'incsearch' is a bit ugly.
Solution:   Return when there is no pattern.  Put common checks together.

patch 8.1.0295: no 'incsearch' highlighting for :vimgrep and similar

Problem:    No 'incsearch' highlighting for :vimgrep and similar commands.
Solution:   Parse the :vimgrep command and similar ones to locate the search
            pattern. (Hirohito Higashi, closes #3344)

patch 8.1.0294: MS-Windows: sometimes uses short directory name

Problem:    MS-Windows: sometimes uses short directory name.
Solution:   Expand to long file name with correct caps. (Nobuhiro Takasaki,
            closes #3334)

patch 8.1.0293: checks for type of stack is cryptic

Problem:    Checks for type of stack is cryptic.
Solution:   Define IS_QF_STACK() and IS_LL_STACK(). (Yegappan Lakshmanan)

patch 8.1.0292: MS-Windows: the text "self-installing" confuses some …

…users

Problem:    MS-Windows: the text "self-installing" confuses some users.
Solution:   Remove the text from the uninstall entry. (closes #3337)