Revert "Assert primary key does not exist in habtm when the association is defined, instead of doing that everytime a record is inserted."

Test failures on PostgreSQL.

[#3128 state:open]

This reverts commit da636809.

Signed-off-by: NJoshua Peek <josh@joshpeek.com>

Remove ClassInheritableAttributes test case, already covered by ActiveSupport [#3114 state:resolved]
Signed-off-by: NJoshua Peek <josh@joshpeek.com>

Assert primary key does not exist in habtm when the association is defined, instead of doing that everytime a record is inserted.

[#3128 state:committed]
Signed-off-by: NJeremy Kemper <jeremy@bitsweat.net>

[#3124 state:committed]
Signed-off-by: NJeremy Kemper <jeremy@bitsweat.net>

Activate rack-test gem before it's required. This shouldn't be necessary, but should fix the build for now

Signed-off-by: NJoshua Peek <josh@joshpeek.com>

Duplicating the options hash in Date#advance to prevent modification of the original [#1133 state:resolved]
Signed-off-by: NJoshua Peek <josh@joshpeek.com>

after a model had been saved. This is useful in the after_save callback
when you need to know what fields changed. At present there is no way
to do this other than have code in the before_save callback that takes
a copy of the changes Map, which I thought was a bit messy.

Example.

  person = Person.find_by_name('bob')
  person.name = 'robert'
  person.changes # => {'name' => ['bob, 'robert']}
  person.save
  person.changes # => {}
  person.previous_changes # => {'name' => ['bob, 'robert']}
  person.reload
  person.previous_changes # => {}
Signed-off-by: NJoshua Peek <josh@joshpeek.com>

Changing plugin loader to use blocks instead of Symbol#to_proc to ensure tests run without activesupport

[#3118 state:committed]
Signed-off-by: NJeremy Kemper <jeremy@bitsweat.net>

Rails will now automatically add locale files found in any engine's locale
directory to the I18n.load_path (i.e. files that match the glob pattern
"config/locales/**/*.{rb,yml}" relative to engine directories).

[#2325 state:committed]
Signed-off-by: NJeremy Kemper <jeremy@bitsweat.net>

Signed-off-by: NJosé Valim <jose.valim@gmail.com>

Signed-off-by: NJosé Valim <jose.valim@gmail.com>

CI config updates: do not send CI emails unless explicitly enabled, use 'gem update --system', and send emails from an address which can post to the core list

[#3116 state:committed]
Signed-off-by: NJeremy Kemper <jeremy@bitsweat.net>

 * Only send emails on official box.
 * Update CI setup docs to correct hostname instructions.

[#3063 state:committed]
Signed-off-by: NJeremy Kemper <jeremy@bitsweat.net>