Really truly clear config cache on discard fixtures

We found that config fixtures are still retained in memory between tests. This fixed that.

Conflicts:
	shell/ecomdev-phpunit.php

don't complain about raw headers that are not name: value

Helper can not be mocked

Fixes for foreign key checks, arbitrary tables and disabled indexers

Possibility to dispatch an URL

Able to start sessions as guest for special methods

Bundle fixture loader

Allow modules to be disabled from local.xml.phpunit

Uses the following XML structure:

    <phpunit>
        <disable_modules>
            <Mynamespace_Mymodule/>
        </disable_modules>
    </phpunit>

vfsStream now can even be used if autoload was configured from extern

Re-enable Attribute fixture loader