Auto-refresh Ibuffer.
Update ido-ubiquitous exceptions for sclang commands.
Don't use ido-ubiquitous with unhighlight-regexp, as it leads to weird
results when flx-ido-mode is turned on.
Ignore *cache files.
[24.4] Get rid of "Your load-path seems to contain your .emacs.d
directory" warning by moving custom code and third-party libraries (that
are not available in standard package repositories) to sub-directory of
.emacs.d.
[24.4] Re-enable my favourite binding for dired-omit-mode.
[24.4] Start using dired-hide-details-mode.

Makes third-party package `dired-details` obsolete.
[24.4] When `dired-hide-details-mode` is on, the topmost file or dir is
located in line 3 (instead of 4). Make sure `dired-jump-to-top` takes
this into account.
Clean up: Move `dired-jump-to-*` commands to "Functions" section under
"Dired" header.
Make abbrev-mode, auto-complete, and projectile use hidden files for
storing information that needs to be persistent across sessions.
Truncate lines by default in Dired.
Bind `er/expand-region` to M-@.

Hopefully, this will make it easier to get in the habit of using
expand-region: M-@ is the default binding for `mark-word`.
Recenter to top first, then to middle, then to bottom.
Reverse order for `org-special-ctrl-a/e`.

That is, jump to true beginning/end of headline first. Keeps me from
hitting C-a twice if I want to use speed keys.