super-save 0.4

New features

• Make super-save checks customizable via super-save-predicates.
• Introduce defcustom super-save-max-buffer-size as a way to avoid auto-saving
  big files.
• Introduce defcustom super-save-exclude (a list of regular expression) as a
  way to filter out certain buffer names from being auto-saved.
• #43: Introduce super-save-silent
  to avoid printing messages in the *Messages* buffer or in the echo area.
• #43: Introduce
  super-save-delete-trailing-whitespace which defaults to nil and accepts
  t to run delete-trailing-whitespace before saving the buffer. This
  variable accepts only the symbol except-current-line to delete trailing
  white spaces from all lines except the current one. This can be useful when we
  are in the middle of writing some thing and we add a space at the end, in this
  case, we more likely need the space to stay there instead of deleting it.
• #44 & #20: Introduce
  super-save-all-buffers to save all modified buffers instead of only the
  current one.

Changes

• Require Emacs 25.