Readme updated to reflect that Trigger support is now included and a patch is no longer needed

Ensure every value in the $sites array is a genuine site dir and not an alias.
For the real dir c, this changes ($sites['a']='b'; $sites['b']='c';)
to ($sites['a']='c'; $sites['b']='c';) to ensure continued operation if alias b is deleted.

[gh-387] Pull Request into develop.

Issue 124

[gh-124] Add a input filter that allows the embedding of content from nodes inside of nodes by using tags.
[gh-124] Add support for the <!--#include virtual="some/path"--> SSI directive as a filter.

Issue 402 Pull Request

Issue 396 Pull Request