updated to 7.4.943

updated to 7.4.943

7.4.923  prototypes not always generated
7.4.924  DEVELOPER_DIR gets reset by configure
7.4.925  user may yank or put using the register being recorded in
7.4.926  completing longest match doesn'thandle multi-byte chars
7.4.927  Ruby crashes when there is a runtime error
7.4.928  a clientserver message interrupts handling keys of a mapping
7.4.929  "gv" after paste selects one char less if 'sel' is "exclusive"
7.4.930  MS-Windows: Most users appear not to like the window border
7.4.931  (after 7.4.929) test 94 fails on some systems
7.4.932  (after 7.4.926) test_utf8 has confusing dummy command
7.4.933  (after 7.4.926) crash using longest match in completion
7.4.934  Appveyor also builds on a tag push
7.4.935  test_utf8 fails on MS-Windows when executed with gvim
7.4.936  crash when dragging with the mouse
7.4.937  segfault reading unitialized memory
7.4.938  X11 and GTK have moure mouse buttons than Vim supports
7.4.939  memory leak when encountering a syntax error
7.4.940  vt52 terminal codes are not correct
7.4.941  there is no way to ignore case only for tag searches
7.4.942  (after 7.4.941) test_tagcase breaks for small builds
7.4.943  test_writefile tests are not run