Fix `ActiveSupport::TimeZone.parse` when time is a local DST jump

The previous implementation `ActiveSupport::TimeZone.parse` used `Time.parse`
which applies the system time DST rules to the parsed time. Instead we now
use `Time.utc` and manually apply the offset.

Backport tests from:
005d910624bbfa724b638426a000c8074d4201a2
c89b6c4cdce7ee55ed3665c099d914222fe0344a
03becb13099c439f6aea5058546bc8b0b19b8db8

Fixes #9678.
Fix ar:mysql2 build on Ruby 1.8.7

The `skip` method is a no-op on Ruby 1.8.7 so we still need to
force skip by returning early from each test.
Extract hardcoded lists to Redo::RestaurantsList
Merge pull request #7368 from jbarreneche/bug/render-locale-fallbacks

i18n locale fallback for localized views
Typo fix [ci ski]

Closes #9730.
do not freeze NumberHelper defaults.

Closes #9767.
Merge pull request #9768 from senny/do_not_freeze_number_helper_defaults

Do not freeze NumberHelper defaults