Release preparations

Firefox version bump to pick up Pwn2Own fix

projects/firefox/config

@@ -7,7 +7,7 @@ git_url: https://git.torproject.org/tor-browser.git
 gpg_keyring: torbutton.gpg
 
 var:
-  firefox_platform_version: 52.7.0
+  firefox_platform_version: 52.7.2
   firefox_version: '[% c("var/firefox_platform_version") %]esr'
   torbrowser_branch: 8.0
   torbrowser_update_channel: alpha

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

+Tor Browser 8.0a4 -- March 17 2018
+ * All platforms
+   * Update Firefox to 52.7.2esr
+
 Tor Browser 8.0a3 -- March 13 2018
  * All platforms
    * Update Firefox to 52.7.0esr

rbm.conf

@@ -15,10 +15,10 @@ buildconf:
   git_signtag_opt: '-s'
 
 var:
-  torbrowser_version: '8.0a3'
+  torbrowser_version: '8.0a4'
   torbrowser_build: 'build1'
   torbrowser_incremental_from:
-    - 8.0a2
+    - 8.0a3
   project_name: tor-browser
   multi_lingual: 0
   build_mar: 1