updated to 7.4.712

updated to 7.4.712

7.4.684  using non-unique temp file names when running Vim in diff mode
7.4.685  with illegal utf-8 chars old regexp engine may crash
7.4.686  "zr" and "zm" do not take a count
7.4.687  there is no way to use a different Replace cursor in terminal
7.4.688  when "$" is in 'cpo' the popup menu isn't undrawn correctly
7.4.689  MS-Windows: problem with diff mode when 'autochdir' is set
7.4.690  memory access errors when changing indent in Ex mode
7.4.691  (after 7.4.689) can't build with MzScheme
7.4.692  defining SOLARIS for no good reason
7.4.693  session file is not correct when there are multiple tab pages
7.4.694  running tests changes the .viminfo file
7.4.695  out-of-bounds read, dectected by Coverity
7.4.696  not freeing memory when encountering an error
7.4.697  the filename used for ":profile" must be given literally
7.4.698  various problems with locked and fixed lists and dictionaries
7.4.699  E315 when trying to delete a fold
7.4.700  fold can't be opened after ":move"
7.4.701  compiler warning for using uninitialized variable
7.4.702  joining an empty list does uneccessary work
7.4.703  compiler warning for start_dir unused when building unittests
7.4.704  invalid memory access if char search matches an illegal byte
7.4.705  can't build with Ruby 2.2
7.4.706  drawing error when 'laststatus' zero and a cmdline window
7.4.707  undo files can have their executable bit set
7.4.708  gettext() is called too often
7.4.709  ":tabmove" does not work as documented
7.4.710  it is not possible to make spaces visibible in list mode
7.4.711  (after 7.4.710) missing change in one file
7.4.712  missing change in another file