Fix typo in CHANGELOG entry for #15071
Merge pull request #15144 from leafac/fix-changelog-#15071

Fix typo in CHANGELOG entry for #15071
fixed capitalizations [ci skip]

jQuery, SQLite3 and Unicorn use these respective capitalizations pretty much everywhere else in the comment sections of the project.
Merge pull request #15145 from ShunsukeAida/capitalization

fixed capitalizations [ci skip]
fix typo [ci skip]
prefer file name instead of filename [ci skip]
Ensure :js is defined regardless of the outcome of the test.
Merge pull request #15132 from zuhao/refactor_actionpack_abstract_collector_test

Ensure :js is defined regardless of the outcome of the test.
fix symbol
Merge pull request #15147 from regonn/fix-symbol

Fix symbol at guides getting_started.md
Fix app generator test hanging.
Merge pull request #15150 from xtian/fix-railties-tests

Fix app generator test hanging.