Move to_param to to_query, also Improve tests
remove unneeded test model for ActiveModel test cases.
Stop using mocha on app_rails_loader_test
Stop using mocha on configuration_test
Set the application logger using configuration
Stop using mocha on console_test
Add link to minitest rdoc & github
Stop using mocha on dbconsole_test
[ci skip] Use appropriate mailer syntax.

Reference: https://github.com/rails/rails/commit/f7e4362011ceb1317fd401125d48d7ccb9a1079c
[ci skip] Remove duplicated last! section.

Reference: https://github.com/rails/rails/commit/d4fd0bd17709735ac91e434c94fe99429f078c6e

cc @schneems
small refactors to actionview renderers
marking private methods which dont work if called on their own anyways
adding missing test coverage
Fixed typo in comment
Merge pull request #16227 from Aguynamedsteve/typo_correction

Fixed typo in comment [ci skip]
Performed Returns true if redirect/render has happened
Merge pull request #16224 from egilburg/renderer_refactors

Some ActionView renderer refactors
adding missing test for text area value before type cast
Merge pull request #16230 from egilburg/before_type_cast_coverage

Missing test for form values before type cast
Stop requiring mocha automatically

We are planning to remove mocha from our test suite because of
performance problems. To make this possible we should stop require mocha
on ActionSupport::TestCase.

This should not affect applications since users still need to add mocha
to Gemfile and this already load mocha.

Added FIXME notes to place that still need mocha removal