Update NOTICE in libphutil

Summary: See D9730.

Test Plan: reading

Reviewers: chad

Reviewed By: chad

Subscribers: epriestley

Differential Revision: https://secure.phabricator.com/D9732
Add classes to Remarkup lists and headers

Summary:
Ref T5497. We have some Remarkup CSS rules like `.remarkup ul`, which are bleeding into ObjectLists inside `{Wxxx}` and similar.

Add explicit classes to headers and lists so we can scope the Remarkup rules more tightly.

Test Plan: This stuff is covered by a million billion unit tests.

Reviewers: chad

Reviewed By: chad

Subscribers: epriestley

Maniphest Tasks: T5497

Differential Revision: https://secure.phabricator.com/D9756
Support BitBucket as an auth provider

Summary: Ref T4251. See D9760, which fixes the root issue. See D9202 for discussion.

Test Plan: Authenticated with BitBucket.

Reviewers: btrahan, asherkin

Reviewed By: asherkin

Subscribers: epriestley

Maniphest Tasks: T4251

Differential Revision: https://secure.phabricator.com/D9761
Test cases should extend from `PhutilTestCase`

Summary: Currently, a few test cases in rPHU extend from `ArcanistPhutilTestCase` instead of `PhutilTestCase`.

Test Plan: This is a really minor change, but the unit tests still pass of course.

Reviewers: epriestley, #blessed_reviewers

Reviewed By: epriestley, #blessed_reviewers

Subscribers: epriestley, Korvin

Differential Revision: https://secure.phabricator.com/D9787
Merge remote-tracking branch 'upstream/master'