Bump database_cleaner from 1.5.3 to 1.7.0

[dependabot-preview]

Bumps database_cleaner from 1.5.3 to 1.7.0.

Changelog

Sourced from database_cleaner's changelog.

== Development (master)

=== Bug Fixes
=== Changes

== 1.7.0 2017-04-19

=== Bug Fixes

• Remove unnecessary folders from gem: https://github-redirect.dependabot.com/DatabaseCleaner/database_cleaner/pull/508
• Properly quote table names: https://github-redirect.dependabot.com/DatabaseCleaner/database_cleaner/pull/501
• Use more idiomatic Ruby in README: https://github-redirect.dependabot.com/DatabaseCleaner/database_cleaner/pull/510
• Return ::ActiveRecord::Base from establish_connection: https://github-redirect.dependabot.com/DatabaseCleaner/database_cleaner/pull/399

=== Changes

• Safeguard against running in production or running against a remote database: https://github-redirect.dependabot.com/DatabaseCleaner/database_cleaner/pull/521

== 1.6.2 2017-10-29

=== Bug Fixes

• ActiveRecord::Base namespace patch: https://github-redirect.dependabot.com/DatabaseCleaner/database_cleaner/pull/490
• Better exclusion condition based on Rails version: https://github-redirect.dependabot.com/DatabaseCleaner/database_cleaner/pull/487

=== Changes

• Better documentation. Typos were fixed. Sequel deletion is supported: https://github-redirect.dependabot.com/DatabaseCleaner/database_cleaner/pull/500

== 1.6.1 2017-05-09

=== Bug Fixes

• Deletion strategy fix for ActiveRecord (kawamoto)

== 1.6.0 2017-05-04

=== New Features/Changes

• Rails 5.1 support: Remove deprecation warning (activefx)
• MySQL 5.6+ InnoDB support (ahorek)
• Better documentation (fixed typo) (hoshinotsuyoshi)

=== Bug Fixes

• Fix Redis db option (soylent)
• Make NullStrategy API-complete (anicholson)

== 1.5.3 2016-04-22

=== Bug Fixes

• P9GIT fixed issue #436

== 1.5.2 2016-04-17

=== New Features/Changes

• Use default_client with mongoid 5.0 (stjhimy)

... (truncated)

Commits

• 0dcf095 Bump version to 1.7.0
• ec01c43 Update History file with 1.7.0 changes and fixes
• 83c485c adds expected return value of connection_hash is set
• 986d198 gives an explicit return of ActiveRecord::Base for establish connection
• 21bd4d0 Merge pull request #525 from nicolasleger/patch-2
• af4ac8e Patch json gem for Ruby >= 2.3
• 6957554 Tweaked code to use stub_const instead
• 829befd allow 127.0.0.1 in DATABASE_URL
• 303cfc8 add to History.rdoc
• 6843b80 document safeguards
• Additional commits viewable in compare view

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[dependabot-preview]

Looks like database_cleaner is up-to-date now, so this is no longer needed.