Added test_hre_titles
Added hre_titles accessor
Made hre_tag an instance var
Missed a reference to @hre_tag
added test_hre_tag
Added hre_tag accessor
Added test_setting_hre_history
Added @hre_history accessor, and toggles
Added test_last_hre
Added @last_hre accessor
Generic - A_Title has history
Rewrote tests to be more general
Fixed auto-completion bug
Added @last_holder accessor and initializer
Added last_holder setter
Added @last_holder setter function - buggy
Rolling back; more incremental tests
Starting fresh