change to use the new "debugger" gem on mri_19
The "debugger" gem is a fixed fork of the (broken) ruby-debug19 that works on 1.9.x including 1.9.2 and 1.9.3.
use the 'debugger' gem on 1.9 ruby instead of the broken ruby-debug19
Also awesome. Thanks for the heads up, I was wondering when the 1.9.3 debugger situation would get worked out.