include:
* Allow catching multiple exceptions.
* Add Debugger.last_exception which is set in post-mortem.
* Remove Debugger.stop() when an exception is raised that would
terminate the debugged program. This may allow catchpoints to work
and allow tracing user code which handles "Exit" exceptions
* Preface ruby_debug global Ruby variables with rdebug_.
* Change Debugger.start() to accept an optional options argument
:init => true saves things (like $0 and ARGV) necessary to
allow restart. Default: true
:post_mortem => true runs post-mortem on an uncaught exception
Default: false
The old Debugger.start() is now renamed to Debugger.start_()
INCOMPATIBLE CHANGES:
* variable "Debugger.catchpoint", a String, was turned into
"Debugger.catchpoints", a Hash.
* Method "Debugger.catchpoint=" no longer exists.
* Debugger.set_catchpoint was turned into Debugger.add_catchpoint
* return/end will now call event handler