---- done:

ARDB::Rule module: 

	   find_matching_values () method -- this one you can do
	   completely right now

ARDB::Action and ARDB::Action::Relation: first skeleton

ARDB::Table and <table> elements in configuration.xml
	general
	
	a way to define mapping from template attributes to table fields

	issuing SQL statements

---- what to do next:


ARDB::Table:
	test script table.t


ARDB::RelationType:
 	
	interface for configuration and for usage on the get_full_template() stage


ARDB::Action and ARDB::Rule modules: 

	   get_actions_for_template () method -- finalize


SQL


ARDB::Relations - this class will only know about SQL and SiteConfig.  
      Originally - only SQL.


ARDB.pm - this also will be a class with object-oriented features.  
 	Object of this class will contain and provide all the related 
 	parts: Configuration, SiteConfig objects, sets of RelationType,
 	Rule, Table objects.


ARDB::SiteConfig

	among many little things, it will contain SQL database 
	settings

