ActiveSupport::Notifications::Instrumenter#instrument should yield
its payload the same way that ActiveSupport::Notifications does.
Fix spelling in test name.
Use define_method when method name contains weird characters.
s/and and run/and runs/

Fixing some typos/grammar.
Merge pull request #9939 from dchapman1988/master

Fixing some typo(s)/grammar.
respect auto_increment in rename_column for mysql
Merge pull request #9928 from vipulnsward/fix_rename_auto_increment_mysql

respect auto_increment in rename_column for mysql
Combine tests and restore columns dropped by hstore testing

Disabling the hstore extension during testing created order dependent
test failures.
Merge pull request #9876 from macksmind/restore_cols_dropped_by_hstore_test

Restore columns dropped by hstore test
Make connection_handler overridable per thread
drop variable assignment in validations
Merge pull request #9945 from vipulnsward/drop_var_in_validations

Drop variable assignment in validations
Use thor master since 0.18.0 has a regression

See
https://github.com/wycats/thor/commit/08265a380d0ff3fce014e98e87bb8c2330858e4a
for the discussion and https://github.com/wycats/thor/pull/316 for the
fix
mention strong parameters in complex forms section of the guides.

Closes #9921.
Merge pull request #8368 from SamSaffron/master

Allow connection_handler to be overriden per-thread
Merge pull request #9947 from senny/strong_params_doc_for_complex_forms

mention strong parameters in complex forms section of the guides.
drop errors constant
Fixed typos in activerecord
Merge pull request #9952 from prathamesh-sonpatki/AR-typos

Fixed typos in activerecord
Merge pull request #9949 from vipulnsward/drop_yaml_error_constant

drop errors constant
Provides standard layout lookup behavior for method and proc cases

When setting the layout either by referencing a method or supplying a
Proc there is no way to fall back to the default lookup behavior if
desired. This patch allows fallback to the layout lookup behavior when
returning nil from the proc or method.