Add initial support for chained exception inspection
Improve PrettyPageHandler resources code
Document PrettyPageHandler::getResource
Fix failing PrettyPageHandler tests
Move deprecated methods in PrettyPageHandler to end of class body
Move template helpers to own class
Add test for TemplateHelper::slug
Add TemplateHelper::render
Add test for TemplateHelper::render
Re-organize resource structure
Start moving some stuff over to the new template layout
Use TemplateHelper methods in frames_list.php
Split up template into multiple files
Rename template files
Remove  template variable
Consolidate template variable handling
Add TemplateHelper tests for variable handling
*twitch* one space too many
On shutdown do not handle errors that can be handled by the registered error handler.

We do this, because we are not able to inspect the error control operator examining
the output of error_get_last().

@see http://php.net/manual/en/language.operators.errorcontrol.php
@see http://www.php.net/manual/en/function.set-error-handler.php
Fix #103: header call would hang php development server before