chore(deps): stable ember infrastructure

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change	References
ember-cli	devDependencies	minor	3.6.1 -> 3.7.1	homepage, source
ember-source	devDependencies	minor	3.6.1 -> 3.7.0	homepage, source

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Release Notes

ember-cli/ember-cli

### [`v3.7.1`](https://togithub.com/ember-cli/ember-cli/blob/master/CHANGELOG.md#v371) [Compare Source](https://togithub.com/ember-cli/ember-cli/compare/v3.7.0...v3.7.1) ##### Blueprint Changes - [`ember new` diff](https://togithub.com/ember-cli/ember-new-output/compare/v3.7.0...v3.7.1) - [`ember addon` diff](https://togithub.com/ember-cli/ember-addon-output/compare/v3.7.0...v3.7.1) ##### Community Contributions - [#​8357](https://togithub.com/ember-cli/ember-cli/pull/8357) blueprints/addon: Fix incorrect job formatting in `.travis.yml` config [@​buschtoens](https://togithub.com/buschtoens) Thank you to all who took the time to contribute! ### [`v3.7.0`](https://togithub.com/ember-cli/ember-cli/blob/master/CHANGELOG.md#v370) [Compare Source](https://togithub.com/ember-cli/ember-cli/compare/v3.6.1...v3.7.0) ##### Blueprint Changes - [`ember new` diff](https://togithub.com/ember-cli/ember-new-output/compare/v3.6.1...v3.7.0) - [`ember addon` diff](https://togithub.com/ember-cli/ember-addon-output/compare/v3.6.1...v3.7.0) ##### Community Contributions - [#​8262](https://togithub.com/ember-cli/ember-cli/pull/8262) spelling fix [@​jfdnc](https://togithub.com/jfdnc) - [#​8264](https://togithub.com/ember-cli/ember-cli/pull/8264) Remove redundant \_requireBuildPackages and format comments [@​xg-wang](https://togithub.com/xg-wang) - [#​8275](https://togithub.com/ember-cli/ember-cli/pull/8275) Fix dead link in CONTRIBUTING.md [@​hakilebara](https://togithub.com/hakilebara) - [#​8279](https://togithub.com/ember-cli/ember-cli/pull/8279) CHANGELOG: Drop releases before v2.8.0 [@​Turbo87](https://togithub.com/Turbo87) - [#​8286](https://togithub.com/ember-cli/ember-cli/pull/8286) Provide a compatibility section in addon READMEs [@​kennethlarsen](https://togithub.com/kennethlarsen) - [#​8296](https://togithub.com/ember-cli/ember-cli/pull/8296) Add ember-source@3.4 LTS ember-try scenario. [@​rwjblue](https://togithub.com/rwjblue) - [#​8297](https://togithub.com/ember-cli/ember-cli/pull/8297) Remove last usage of Babel 6. [@​rwjblue](https://togithub.com/rwjblue) - [#​8299](https://togithub.com/ember-cli/ember-cli/pull/8299) remove ember-lts-2.16 ember-try scenario [@​kellyselden](https://togithub.com/kellyselden) - [#​8308](https://togithub.com/ember-cli/ember-cli/pull/8308) ignore .env\* files [@​kellyselden](https://togithub.com/kellyselden) - [#​8351](https://togithub.com/ember-cli/ember-cli/pull/8351) Update Ember and Ember Data to v3.7.0 [@​Turbo87](https://togithub.com/Turbo87) - [#​8352](https://togithub.com/ember-cli/ember-cli/pull/8352) Fix `relative-module-paths` caching [@​Turbo87](https://togithub.com/Turbo87) Thank you to all who took the time to contribute!

emberjs/ember.js

### [`v3.7.0`](https://togithub.com/emberjs/ember.js/blob/master/CHANGELOG.md#v370-January-7-2019) [Compare Source](https://togithub.com/emberjs/ember.js/compare/v3.6.1...v3.7.0) - [#​17254](https://togithub.com/emberjs/ember.js/pull/17254) [BREAKING] Explicitly drop support for Node 4 - [#​17426](https://togithub.com/emberjs/ember.js/pull/17426) [BUGFIX] Fix 'strict mode does not allow function declarations' - [#​17431](https://togithub.com/emberjs/ember.js/pull/17431) [BUGFIX] Fix ability to override a computed.volatile - [#​17398](https://togithub.com/emberjs/ember.js/pull/17398) [BUGFIX] Avoid console.trace for every Ember.warn - [#​17399](https://togithub.com/emberjs/ember.js/pull/17399) [BUGFIX] Local variable shadowing assert - [#​17403](https://togithub.com/emberjs/ember.js/pull/17403) [BUGFIX] Ensure legacy build of template compiler can be loaded. - [#​17328](https://togithub.com/emberjs/ember.js/pull/17328) [BUGFIX] Ensure that delayed transition retrys work - [#​17374](https://togithub.com/emberjs/ember.js/pull/17374) [BUGFIX] Fix cyclic references on Array.prototype - [#​17134](https://togithub.com/emberjs/ember.js/pull/17134) [CLEANUP] Remove deprecated '\_router' - [#​17133](https://togithub.com/emberjs/ember.js/pull/17133) [CLEANUP] Remove deprecated 'property{Did,Will}Change' - [#​16898](https://togithub.com/emberjs/ember.js/pull/16898) Add RFC 232 style util test blueprint for Mocha

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