Improved search manager integration for ExpandFacets recommendation module; also eliminated explicit \VuFind namespace reference in template.

Cleaned up some recommendation modules so they do not rely on $this->results already being set in the global context -- it is now pulled explicitly from the recommendation object.

Simplified Solr autocomplete subclasses and adjusted base class to use Search Manager and to disable recommendations for better performance.

Introduced \VuFind\Search\Manager; began using it to replace \VuFind\Search\Options (refactoring still in progress).

Standardized plugin manager initialization to make subsequent additions easier; added support for service locator injection.

Created abstract base class for Cart helper so we can create other service locator based view helpers.

Upgraded to latest ZF2 release (RC7); uncommented VuFind features that were waiting for functionality introduced in this release.

Eliminated __call method in \VuFind\Search\Base\Results; explicit getParams() calls make code more comprehensible.

Made getParams() calls more explicit; fixed bug where scroller did not work for non-standard page sizes.

Eliminated __call() method in \VuFind\Search\Base\Options; replaced with explicit getOptions() calls to make the code more consistent and understandable.

Made constructor injection of catalog connection into ILS logic classes mandatory to break unnecessary dependencies.