Add changelog for 0.42.0

Closes mozilla-mobile#1944: Remove unneeded default arg of initWebView

Add changelog for 0.40.0

Add changelog entry for 0.39.0

Fix routes.statuses to be under the right decision tasks

Closes mozilla-mobile#1664: Use BrowserFragment.onCreateView instead …

…of onViewCreated.

Update changelog for 0.37.0 release.

Fix routes.statuses to be under the right decision tasks

Fixes mozilla-mobile#1624: Session: Crash because trackersBlocked is …

…empty

Issue mozilla-mobile#1546 - Add browser-toolbar update to changelog.