Refactored Auth plugins to avoid dependence on generic ServiceLocatorAwareInterface; injections are now more targeted for clearer dependencies.  Also added some missing comments.

Use explicit dependency injection for ILS authentication module instead of relying on service locator.

  - Eliminated dependency on ServiceLocatorAwareInterface by creating more targeted initWithDriverManager method
  - Added setDriver method to enable more flexible usage/testing
  - Implemented fluent interface on setConfig/setDriver to simplify factory routine
  - Made some methods more tolerant of missing configuration settings

Adding sample Greenstone Digital Library import configurations (from VUFIND-588; thanks to Mohan Raj Pradhan).

Eliminated some unnecessary @access comments.

Fixed bug -- push custom initializer to bottom of stack rather than top; take advantage of initializer second parameter to eliminate $self assignment.

Use initializer instead of custom get method to set up table gateway objects (more framework-friendly approach) and inject DB adapter from outside (more flexible/comprehensible).

Updated Summon controller with separate methods for loading advanced/homepage facets; these currently load the same data, but this provides an integration point for separate lists consistent with VUFIND-348.

Resolving VUFIND-650 (Console applications do not display exceptions correctly); this was actually a simple configuration issue.