mabp::cache: Capture and process the output of Web pages

This class can be used to capture and process the content of whole Web pages.

It uses PHP output buffering support to capture the content of the current page.

Before sending the captured pages content, it can execute several processing actions like: compressing the pages content, rewrite the URLs of links, images and forms, highlight words in the page text with a special color, add security fields to forms

The class can also manipulate response headers.