Migrate segmentio (#276)

* Add integration segmentio

This commit copies the content of the integration repo into
the "integrations" folder.

Original repo: https://github.com/segment-integrations/analytics.js-integration-segmentio
Readme: https://github.com/segment-integrations/analytics.js-integration-segmentio/blob/master/README.md

* Fix formatting

Author: CarlosMecha

integrations/segmentio/HISTORY.md

@@ -0,0 +1,186 @@
+
+4.0.0 / 2019-03-08
+==================
+
+  * [New](https://github.com/segment-integrations/analytics.js-integration-segmentio/pull/55): Stop Generating MessageId.
+
+3.9.0 / 2019-01-14
+==================
+
+  * [New](https://github.com/segment-integrations/analytics.js-integration-segmentio/pull/54): Add flag and logic to delete cross domain identifiers.
+
+3.8.1 / 2018-12-09
+==================
+
+  * [Fix](https://github.com/segment-integrations/analytics.js-integration-segmentio/pull/52): Don't send xid when cross domain analytics is disabled.
+
+3.8.0 / 2018-10-05
+==================
+
+  * [Improvement](https://github.com/segment-integrations/analytics.js-integration-segmentio/pull/49): Enable retryQueue by default.
+
+3.7.0 / 2018-28-08
+==================
+
+  * [Improvement](https://github.com/segment-integrations/analytics.js-integration-segmentio/pull/48): Handle 429 and 5xx HTTP errors
+
+3.6.5 / 2018-17-08
+==================
+
+  * [Fix](https://github.com/segment-integrations/analytics.js-integration-segmentio/pull/47): Update localstorage-retry version with fix limiting the inProgress queue
+
+3.6.4 / 2018-11-07
+==================
+
+  * [Fix](https://github.com/segment-integrations/analytics.js-integration-segmentio/pull/45): Update localstorage-retry version with fix for adding multiple items to the queue.
+
+3.6.3 / 2018-28-06
+==================
+
+  * Warn when messages exceed limits.
+
+3.6.2 / 2018-17-04
+==================
+
+  * Add timeout for requests that will be retried.
+
+3.6.1 / 2018-15-04
+==================
+
+  * Retry messages only upto 10 times.
+
+3.6.0 / 2017-11-01
+==================
+
+  * add lookup for failedInitializations and pass as _metadata
+
+3.5.4 / 2017-08-24
+==================
+
+  * cap retryQueue to 100 items, tune backoff strategy
+
+3.5.3 / 2017-08-02
+==================
+
+  * retryQueue falls back to inMemory if localStorage is full
+
+3.5.2 / 2017-08-02
+==================
+
+  * Bump localstorage-retry version (again ;)
+
+3.5.1 / 2017-08-02
+==================
+
+  * Bump localstorage-retry version (#32)
+
+3.5.0 / 2017-07-31
+==================
+
+  * Enqueue All Requests to LocalStorage for Durability (#23)
+
+3.4.2 / 2017-04-03
+==================
+
+  * Revert "use top-domain module instead of hand rolled function (#24)"
+  * Revert "Address comments. (#25)"
+  * Revert "Fix TLD implementation and add tests. (#28)"
+
+3.4.1 / 2017-03-30
+==================
+
+  * Address general XID comments. (#25)
+  * use top-domain module instead of hand rolled function (#24)
+  * fix(normalize): Allow override context.campaign (#26)
+  * Improve cookie behavior via using shorter cookie names (#22)
+
+3.4.0 / 2017-01-25
+==================
+
+  * Add localStorage queueing for durability
+
+3.3.0 / 2017-01-17
+==================
+
+  * Add cross domain id capability (#20)
+
+3.2.2 / 2017-01-02
+==================
+
+  * Add beacon support (#19)
+
+3.2.1 / 2016-11-03
+==================
+
+  * Always send requests over HTTPS
+
+3.2.0 / 2016-09-01
+==================
+
+  * Add unbundled metadata (#17)
+  * Add bundled integrations metadata to every request (#16)
+
+3.1.1 / 2016-07-22
+==================
+
+  * Add `apiHost` as full integration option
+
+3.1.0 / 2016-07-22
+==================
+
+  * Allow configuration of API endpoint (#14)
+
+3.0.0 / 2016-07-18
+==================
+
+  * revert context-traits auto-sending (#13)
+
+2.0.0 / 2016-06-21
+==================
+
+  * Remove Duo compatibility
+  * Add CI setup (coverage, linting, cross-browser compatibility, etc.)
+  * Update eslint configuration
+
+
+1.0.7 / 2016-06-17
+==================
+
+  * add .context.amp and pull segment_amp_id
+
+
+1.0.6 / 2016-05-24
+==================
+
+  * fix this forsaken dependency hell
+  * add traits to context
+
+1.0.5 / 2016-05-07
+==================
+
+  * Bump Analytics.js core, tester, integration to use Facade 2.x
+
+1.0.4 / 2015-09-15
+==================
+
+  * Update send-json dependency
+
+1.0.3 / 2015-09-14
+==================
+
+  * increasing `messageId` randomness
+
+1.0.2 / 2015-06-30
+==================
+
+  * Replace analytics.js dependency with analytics.js-core
+
+1.0.1 / 2015-06-24
+==================
+
+  * Bump analytics.js-integration version
+
+1.0.0 / 2015-06-09
+==================
+
+  * Initial commit :sparkles:

integrations/segmentio/README.md

@@ -0,0 +1,12 @@
+# analytics.js-integration-segmentio [![Build Status][ci-badge]][ci-link]
+
+Segmentio integration for [Analytics.js][].
+
+## License
+
+Released under the [MIT license](LICENSE).
+
+
+[Analytics.js]: https://segment.com/docs/libraries/analytics.js/
+[ci-link]: https://circleci.com/gh/segment-integrations/analytics.js-integration-segmentio
+[ci-badge]: https://circleci.com/gh/segment-integrations/analytics.js-integration-segmentio.svg?style=svg

integrations/segmentio/karma.conf-ci.js

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+module.exports = require('../../karma.conf-ci.js');

integrations/segmentio/karma.conf.js

@@ -0,0 +1 @@
+module.exports = require('../../karma.conf');