*
Debug (addition)
* - Source debug - adds comments to the output showing each source line above
* the result - ?#s+ to turn on, ?#s- to turn off, ?#s! to toggle
* - Output debug - shows the output directly in the browser - ?#o+ to turn on, ?#o- to turn off, ?#o! to toggle
* - Control both at once - ?#so+ to turn on, ?#so- to turn off, ?#so! to toggle
* - Ugly mode can be controlled by the template
*
* - Ugly mode is turned off when in debug
* "-" command (notes)
* - PHP does not require ending ";"
* - PHP control blocks are automatically bracketed
* - Switch Case statements do not end with ":"
*
- do-while control blocks are written as "do (expression)"
*
* Comes with filters that run "out of the box":
* + plain: useful for large chunks of text to ensure Haml doesn't do anything.
* + escaped: like plain but the output is (x)html escaped.
* + preserve: like plain but preserves the whitespace.
* + cdata: wraps the content in CDATA tags.
* + javascript: wraps the content in