Hey, let's just make it easier for everyone and dump the unmaintained ruby-debug19 and move to debugger. Whats the consensus here? If we want better adoption on ruby1.9, please lets just use this fork.

Fix a wrong return value from reset_sequence_name method.

don't duplicate default values in text helper

Remove obsolete code

Update RDoc to mention integer coercion in ActiveRecord’s find by id

The main reason for this is that I want to separate the code that does
the mutating from the code that does the cloning.

#send_file leans on Rack::Sendfile to X-Accel-Redirect the file's path, so opening the file to set the response body is wasteful. Set a FileBody wrapper instead that responds to to_path and streams the file if needed.

Improve the performance of #delegate

Some refactor for association.

* Remove unused association_class method.
* Remove a unnecessary assignment.
* Move @updated to BelongsToAssociation that only reference this instance variable.
* Reset @stale_state at the reset method. I think this place is right place.