Overhaul carousel a bit more:

* Drop custom type arrow controls for glyphicons icons instead for more consistent rendering
* Remove the captions and instead let folks implement what they want in the carousel
* Move the indicators to the bottom middle instead of top right
* Lighten up gradients on the edges for less harsh lighting

_config.yml

@@ -6,7 +6,6 @@ pygments:     true
 permalink:    pretty
 
 # Server
-auto:         true
 source:       ./docs
 destination:  ./_gh_pages
 url:          http://bootstrap.dev:9001