Update version to 0.34.1.

Run the Glean API off the main thread by default

This introduces the internal Dispatchers object,
which allows to use a predefined scope for launching
functions off the main thread. Moreover, this also adds
the test only FakeDispatchersInTest class, which allows
to block on API calls during tests, ensuring they don't
fail due to racing.

Add changelog entry for 0.33

decision_task_release: Do not run detekt and ktlint for releases.

Issue mozilla-mobile#1303: Move CustomTabService to new feature compo…

…nent: feature-customtabs.

Closes mozilla-mobile#1127: Expose ReloadPageButton through BrowserTo…

…olbar

This code already exists in our sample app, and was moved to make it
available to apps as well.

Renamed ReloadPageAction -> TwoStateButton.

Updates changelog doc with this and the parent issue.

Closes mozilla-mobile#1193: Glean ktlint errors show up for generated…

… build file

Add changelog for 0.28.0

Temporarily deactivate bintray publishing for 0.27.0 release

Disable bintray publishing temporarily.