Pick up three Mozilla patches for 8.5a2

projects/firefox/config

 # vim: filetype=yaml sw=2
 version: '[% c("abbrev") %]'
 filename: 'firefox-[% c("version") %]-[% c("var/osname") %]-[% c("var/build_id") %]'
-git_hash: 'tor-browser-[% c("var/firefox_version") %]-[% c("var/torbrowser_branch") %]-1-build2'
+git_hash: 'tor-browser-[% c("var/firefox_version") %]-[% c("var/torbrowser_branch") %]-1-build3'
 tag_gpg_id: 1
 git_url: https://git.torproject.org/tor-browser.git
 gpg_keyring: torbutton.gpg

projects/tor-browser/Bundle-Data/Docs/ChangeLog.txt

-Tor Browser 8.5a2 -- September 20 2018
+Tor Browser 8.5a2 -- September 24 2018
  * All platforms
    * Update Tor to 0.3.5.1-alpha
    * Update Torbutton to 2.1
@@ -24,6 +24,7 @@ Tor Browser 8.5a2 -- September 20 2018
    * Bug 27264: Bookmark items are not visible on the boomark toolbar
    * Bug 27535: Enable TLS 1.3 draft version
    * Bug 27623: Use MOZILLA_OFFICIAL for our builds
+   * Backport of Mozilla bug 1490585, 1475775, and 1489744
  * Windows:
    * Bug 26381: about:tor page does not load on first start on Windows
  * Linux:

rbm.conf

@@ -16,7 +16,7 @@ buildconf:
 
 var:
   torbrowser_version: '8.5a2'
-  torbrowser_build: 'build1'
+  torbrowser_build: 'build2'
   torbrowser_incremental_from:
     - 8.5a1
   project_name: tor-browser