Update Gemfile to use 'debugger' instead of unmaintained 'ruby-debug19'

Make log_level explicit in production.rb template

The 'production' environment name is currently checked for setting up
the default log_level to 'info' but that won't work if the environment
is copied to staging.rb, for instance. Better to have it explicitly set.

fixed broken build after multi_json upgrade

Multi_json also upgraded.

fix scaffold_generator_test.rb

Update Rails 3.2.3 release date in changelogs as March 30, 2012

The release date details have been taken from
http://weblog.rubyonrails.org/2012/3/30/ann-rails-3-2-3-has-been-released/

Broken after this 6a054b00

I also removed the other require as it's already present in
`activesupport/core_ext/time/calculations`

Automatically create indexes for references/belongs_to statements in migrations.

remove extra new line from generated Gemfile

Rename notify_observers argument *arg to *args to make it more clear

that the method accepts multiple arguments

Fix ORA-00972 error at test_rename_table_with_prefix_and_suffix

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