To allow muliple plugins, sorted plugin load and general extensibility
of the web client, the server now supports to load an extra.d folder on
startup.
Sub folders inside extra.d, are loaded in alphabetic order and searched
for head.html and body.html, making it possible to append additional
html code into the <head> and <body> elements for the web client.
Example:
```
extra.d/
└── my-plugin
├── body.html
├── head.html
└── static
├── css
│ └── my-plugin.css
└── js
└── my-plugin.js
```
Example head.html:
```
<link rel="stylesheet" href="<%.S%>/css/my-plugin.css">
```
Example body.html:
```
<script data-plugin="<%.S%>/js/my-plugin.js"></script>
```
This makes it possible to extend the web client with additional
components and/or overwrite existing.
Add original file from bootstrap scss.
Move fontawesome.
Fix typo.
Readme for fontawesome.
Update font-awesome path.
Add fontawesome liscence info in readme.
Add fonts to fontawesome.
Remote tracking of built files.