svn merge -r76807:77355 svn+ssh://svn.lindenlab.com/svn/linden/branches/Branch_1-18-6-Viewer --> release

Pick up fixes made to 1.18.6 Viewer, including:

* DEV-8584 Replace "Second Life" with Channel name in viewer crash log reports
* DEV-8384 Connect button doesn't enable
* DEV-8408 Unable to edit First/last name and password fields in viewer login
* DEV-8423 VWR-3948: Underlayers no longer removable by pie menu in Windlight, release candidates
* DEV-8557 Crash on login page when using Logitech LCD Keyboard
* DEV-8507 Crash reporter has no default server to send to when crashing before agent connect
* DEV-8531 viewer_manifest.py broken for 64-bit builds
* DEV-8286 German Translation of the "Release Keys" tab is incorrect
* DEV-7419 Unable to set 'Group Access' for land that is also 'Public Access' (Was VWR-3667)
* DEV-6851 Integrate html error page with client