Anton Paramonov

Pretty simple plugin for disable:
<ul>
<li>the XML-RPC on a WordPress site running 3.5 or above</li>
<li>new emoji functionality in WordPress 4.2</li>
<li>Posts and Comments general feeds</li>
</ul>
And remove:
<ul>
<li>WordPress genarator meta tag from HTML source page</li>
<li>link to wlwmanifest file from HTML source page (Windows Live Writer)</li>
<li>link to RSD EditURI from HTML source page</li>
<li>X-Pingback from HTTP headers and pingback_url in HTML source page</li>
<li>shortlink from HTTP headers and HTML source page</li>
</ul>
Translated on English, Russian and Ukraine languages.

YaBlog

Allows administrators to globally disable XML-RPC, new emoji functionality in WordPress 4.2, wp generator, wlwmanifest, RSD EditURI and rss/feeds on t …

Enej Bajgorić

ctlt-dev

ubcdev

psmagicman

Allows the user to create custom javascript for their WordPress powered site on a global level.
The Javascript made by the user of the plugin will be loaded after any other Javascript that is used by other plugins and/or themes.
PLUGIN FEATURES:
Some of the features that are included in this plugin are:
<ul>
<li>
syntax highlighting
</li>
<li>
code minification
</li>
<li>
revisions
</li>
<li>
grouping blocks of code
</li>
<li>
including dependencies (libraries such as jQuery and backbone.js)
</li>
<li>
elegant editor interface courtesy of ACE
</li>
</ul>
FUTURE ADDITIONS:
Here are some of the things that I will be adding sometime in the future as the plugin grows 🙂 :
<ul>
<li>
ability to choose your minifier of choice from the minify library
</li>
<li>
ability to load different javascript files for each page/post as decided by the plugin user
</li>
<li>
ability to save additional javascript files and create tabs to organize the files
</li>
<li>
a separate button to completely delete the javascript files from the server
</li>
</ul>
<h3>Acknowledgements</h3>
This plugin uses the minify library package by Steve Clay (steve@mrclay.org) and Ryan Grove (ryan@wonko.com). 
More info at http://code.google.com/p/minify/

Global Javascript

A simple Javascript writing/editing tool using ACE editor and the Minify library

YaBlog vs Global Javascript