gnus: move signature stuff to identities
gnus: don't use kernel cookies (outdated and sometimes offensive)
web-mode: use an offset 2 for JS
js: switch to js-mode

With Emacs 24.4, most of js2-mode has been merged in js-mode. Let's
switch back.
el-get: move php-mode auto-mode in `init.el`

All others are here. This makes more sense.
el-get: remove org-passwords recipe

It is now upstream.
el-get: remove ledge recipe

It is now upstream.
el-get: try out JSX mode
Revert "el-get: try out JSX mode"

This reverts commit ae3c04e91ad8eab388afa2d07652fb69e69a07ff. There are
many issues, like not indenting HTML at all.
erc: switch to the most important buffer first