Version 1.2.0 bump

[josephlewis42]

Bump version to 1.2.0 after the Java migration and addition of create_subscription. Updated docs, version and CHANGELOG.

The builds seem to be broken in the same way across three of our repos now that were previously passing, it looks like someone changed something to private that the Logstash spec_helper requires.

• https://travis-ci.org/logstash-plugins/logstash-input-google_pubsub/builds/374934287?utm_source=github_status&utm_medium=notification
• https://travis-ci.org/logstash-plugins/logstash-output-google_bigquery
• https://travis-ci.org/logstash-plugins/logstash-output-google_cloud_storage

[jakelandis]

@josephlewis42 - thanks.

LGTM, the build is failure is https://github.com/elastic/logstash/issues/9535.

I will get this merged and released shortly.

[elasticsearch-bot]

Jake Landis merged this into the following branches!

Branch	Commits
master	bb6b094a9a5085216d2a47ef693563b2046babf6, db9aacf86072f2b2d2c91c6882020aece5963e3f