Also adjusted continuous integration setup accordingly.

* ../import/import.properties: Add commented-out unicode normalization
  option.

Made XSLT importer custom class handling more flexible (and made the nasty class truncation logic optional, so we can start to move away from it).  Updated comments in configuration files to match.

Added integration tests for AlphaBrowse functionality (thanks to the National Library of Ireland for providing test data).

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

Eliminated some unnecessary @access comments.