Updated editors/vim-share to 7.2.284

  2274  7.2.268  crash when using Python to set cursor beyond end of line
  7128  7.2.269  add --startuptime so that slow startup can be analysed
  2281  7.2.270  ":@c" does not execute everything if the c register has a CR
  2649  7.2.271  Motif GUI: Using freed memory when making a choice
  2582  7.2.272  "_.svz" is not recognized as a swap file
  3404  7.2.273  crash when redirirecting to unknown array
  3749  7.2.274  syntax folding doesn't work properly when adding a comment
  2717  7.2.275  warning for unused argument and comparing signed and unsigned
  1875  7.2.276  crash when setting 'isprint' to a small bullet
  1937  7.2.277  CTRL-Y in a diff'ed window may move cursor outside of window
  2312  7.2.278  using magic number in the folding code
  3413  7.2.279  invalid memory read with visual mode "r"
  6656  7.2.280  a redraw in a custom statusline with %! may cause a crash
  2241  7.2.281  'cursorcolumn' highlighting is wrong in diff mode
  1584  7.2.282  a fold can't be closed
  2030  7.2.283  GTK: changing font doesn't keep the window maximized
  1572  7.2.284  two windows on a buffer + folding: display error after change

(martti)