Add `electric-buffer-list` to `ac-non-trigger-commands`.

Calling `electric-buffer-list` would turn `ac-triggered` on and fire auto-complete after switching to an auto-complete enabled buffer in the electric buffer list.
Use absolute link to the manual

A ton of people (see list below) click this link on GitHub, and are lead to a
404 page. You could link to the markdown page, as is suggested at #253, but
that won't work at the cx4a page, and anyway, that page is better rendered
than the GitHub version.

Closes #253, closes #263, closes #262, closes #236, closes #237.
Use the correct link to the manual
Merge pull request #264 from asmeurer/manual

Use absolute link to the manual
Merge pull request #256 from abo-abo/master

Update dict/clojure-mode.
Fix install target

  - Fix case environment variable '$DIR' ends with '/'(#260, #261)
  - Do byte-compile by byte-compile target
  - Fix output message by non interactive case
    byte sequence is outputted
Merge pull request #265 from auto-complete/fix-install-script

Fix install.el
Fix typo(#203)
Merge pull request #267 from auto-complete/fix_typo

Fix typo(#203)
Show message if fuzzy.el is not installed(#210)
Merge pull request #266 from auto-complete/inform-fuzzy.el

Show message if fuzzy.el is not installed(#210)
Strip text property of inserted string

Some face properties are remained if font-lock-defaults is nil, such as
text-mode, fundamental-mode etc.
Merge pull request #270 from auto-complete/remove-popup-face

Strip text property of inserted string
Merge pull request #257 from knu/patch-1

Add `electric-buffer-list` to `ac-non-trigger-commands`.
Add test case same as #166

We cannot merge #166 patches. I fixed it for merging to current source.
Merge pull request #282 from auto-complete/add-test

Add test case same as #166
Update popup submodule revision

This is needed for supporting max-width property
Merge pull request #284 from auto-complete/update-popup-submodule

Update popup submodule revision
Add customizable variable 'max-width' same as #202
Merge pull request #285 from auto-complete/support-max-width

Add customizable variable 'max-width' same as #202