Bump i18n from 0.6.1 to 1.6.0

[dependabot]

Bumps i18n from 0.6.1 to 1.6.0.

Release notes

Sourced from i18n's releases.

v1.6.0

Major updates

• Added support for eagerloading I18n -- which probably improves boot times for applications if implemented correctly - See #469 for more details.
• Added ability to disable I18n translation resolution by setting I18n.locale = false. See #471 for more information.

Bugfixes / other improvements

• Add support for uppercased date format directives - #468

Other changes

• Fixed flaky test issue with JRuby - #459 / #460
• gemspec homepage now points to ruby-i18n/i18n - #465
• Update README to point to ruby-i18n/i18n - #473

v1.5.3

Fix issue where localize would return strange messages if the translation was missing - #464

v1.5.2

• Fixed a bug where the required_ruby_version was not set correctly in the gemspec - #462

v1.5.1

(Note that there is no v1.5.0 release. was prepping this release and found some more changes to make. So v1.5.1 is the first release for the v1.5.x series)

• Fixed a regression that happened when numeric translation keys contained leading zeros: #456 / #457
• Removed support for Ruby versions older than 2.3. Ruby 2.2 is now 4 years old. Applications have had ample time to upgrade, and if they haven't done so, now is an opportune time to do so.
• Removed some code that was checking for RUBY_VERSION <= 1.9
• Began testing over Ruby 2.6.

v1.4.0

• Fixed two issues with i18n and JRuby compat (commit fb0c8beb29cf75fbb82b66339284e8e3f31ecaff and #455). See #447.
• Fixed issue where keys in an array were not symbolised #450
• Fixed issue where ActiveSupport::HashWithIndifferentAccess was not handled correctly #454

v1.3.0

• Updated post-install message to be more explicit about what versions things changed in - #446
• Fixed a regression in backends where keys were incorrectly typecast - #443, #444, #445, etc.

Please note that as of this release, only 5.x and greater versions of Rails are supported (it might help to think of it as ~> 5.0, sorta.)

v1.2.0

• Provide a uniform API between Simple, KeyValue and Chain backends - #109 (one of our oldest PRs, and I am pleased that @​kidpollo has persisted for all this time!)
• Support translation hashes with numeric keys in Simple backend - #422
• Add CacheFile backend module - #423
• Add JSON backend module - #429
• Updated README to point to the wiki - #438
• Added plural rules for oc locale - #440

... (truncated)

Commits

• 529b83a Bump to 1.6.0
• 6f3d428 Merge pull request #471 from Shopify/allow-disabling-i18n
• a9f6941 Merge pull request #473 from JuanitoFatas/patch-1
• 99332c2 Update README
• 5eeaad7 Allow to prevent calls outside of I18n context by setting locale to false
• 70daba7 Merge pull request #468 from jeffjyang/upcased-date-format-directives
• 405a7a8 resolve TODO with abbr de month names
• 8cfff80 Merge pull request #469 from Shopify/eagerloading
• b08a44b Merge pull request #460 from knapo/Investigate-JRuby-test-failures
• 4ac1683 Implement I18n.eager_load!
• Additional commits viewable in compare view

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