This reverts commit 87a5967501.
At least 'modules/doc/run.php' issues a warning about "The use statement with non-compound name 'Zend_Controller_Router_Route' has no effect"
After moving StatusDat to monitoring/Backends and changing the
inheritance to Library/Icinga/Data, a few changes must be reflected in the tests:
- Move tests to monitoring module
- Change $this->backend references in StatusDat Queries to $this->ds
- Added LibraryLoader to ease requiring of libaries (to be discussed)
refs #4417
refs #4179