Release notes for 0.18.x Hotfix 1

[kjozwiak]

Release Notes:

• Upgrade to Chromium 60.0.3112.113. (#10799)
• Upgrade to muon 4.3.16. (#10730)
• Http referrer not blocked. (#10721)
• White tab displayed if 'last viewed tab' isn't available. (#10645)
• Enable Brave in the UA for www.netflix.com. (#10614)
• Tombstone Tabs and Tabs refreshing themselves. (#10561)
• Focus is always set to first tab, Page view not shown for single tab. (#10532)
• Netflix Streaming Error . (#10449)
• Entire Brave UI becomes unresponsive. (#10436)
• About: pages are not always being populated. (#10384)
• Bookmark cannot be moved to bookmark folder on bookmark toolbar. (#10101)
• Regression : Toolbar and UI Elements scale control is not working. (#10089)
• Specific tab closing steps makes the active tab to set the wrong index. (#10038)
• Error while closing tab pages: Could not find tab for <id>. (#9722)
• Tear off last tab to window causes original windows last tab to be shown in white. (#9671)
• Unable to switch tabs sometimes. (#9385)
• Reduce page load jank from isResourceEnabled checks (#9987)

[kjozwiak]

Updated after re-running the auto generator via python braveautogen.py -t TEST so the new manual passes aren't created in the milestone.