||An abstract class which provides a consistent interface for other classes to
access when wanting to block a user interface.
||Class dedicated to the loading and viewing of PDF documents.
||This class will hide certain complexities associated with the built in
||This is the primary class used to create the original instance of the
||Operations is a class which will deal with file operations required of
||Patch is a class that checks to ensure that the Host and Configuration
databases are up to the version of Lyra that is making use of it.