Bind inhibit-modification-hooks rather than a/b-c-f

Bind inhibit-modification-hooks rather than a/b-c-f

* lisp/wid-edit.el (widget-editable-list-insert-before)
(widget-editable-list-delete-at):
* lisp/progmodes/cperl-mode.el (cperl-find-pods-heres)
(cperl-font-lock-unfontify-region-function):
* lisp/progmodes/antlr-mode.el (save-buffer-state-x):
* lisp/obsolete/longlines.el (longlines-mode):
* lisp/obsolete/fast-lock.el (save-buffer-state):
* lisp/mouse.el (mouse-save-then-kill-delete-region):
* lisp/gnus/message.el (message-hide-headers):
* lisp/eshell/esh-mode.el (eshell-send-input, eshell-output-filter):
* lisp/ibuffer.el (ibuffer-update-title-and-summary)
(ibuffer-redisplay-engine): Bind inhibit-modification-hooks to t rather
than after/before-change-functions to nil.