patch 8.0.1288: GUI: cannot drag the statusline of a terminal window

Problem:    GUI: cannot drag the statusline of a terminal window.
Solution:   Handle the TERMINAL state. (Hirohito Higashi)

patch 8.0.1287: temp file used for viminfo may have wrong permissions

Problem:    The temp file used when updating the viminfo file may have the
            wrong permissions if setting the group fails.
Solution:   Check if the group matches and reduce permissions if not.

patch 8.0.1286: occasional crash when using a channel

Problem:    Occasional crash when using a channel. (Marek)
Solution:   Decrement reference count later. (closes vim#2315)

patch 8.0.1285: occasional crash when using a channel

Problem:    Occasional crash when using a channel. (Marek)
Solution:   Decrement reference count later. (closes vim#2315)

patch 8.0.1284: loading file type detection slows down startup

Problem:    Loading file type detection slows down startup.
Solution:   Store the last pattern of an autocommand event to make appending
            quicker.

patch 8.0.1283: test 86 fails under ASAN

Problem:    Test 86 fails under ASAN.
Solution:   Fix that an item was added to a dictionary twice.

patch 8.0.1282: script-local variable defined in the wrong script

Problem:    script-local variable defined in the wrong script
Solution:   Move variable to autoload/filetype.vim.

patch 8.0.1281: loading file type detection slows down startup

Problem:    Loading file type detection slows down startup.
Solution:   Move functions to an autoload script.

patch 8.0.1280: Python None cannot be converted to a Vim type

Problem:    Python None cannot be converted to a Vim type.
Solution:   Convert it to v:none. (Ken Takata)

patch 8.0.1279: initializing menus can be slow

Problem:    Initializing menus can be slow, especially when there are many
            keymaps, color schemes, etc.
Solution:   Do the globbing for runtime files lazlily. (Ken Takata)