more tweaks to settle phabricator setup issues

roles/phabricator/files/php.ini

@@ -726,7 +726,7 @@ auto_globals_jit = On
 
 ; Maximum size of POST data that PHP will accept.
 ; http://www.php.net/manual/en/ini.core.php#ini.post-max-size
-post_max_size = 8M
+post_max_size = 32M
 
 ; Magic quotes are a preprocessing feature of PHP where PHP will attempt to
 ; escape any character sequences in GET, POST, COOKIE and ENV data which might

roles/phabricator/templates/local.json.j2

@@ -12,6 +12,7 @@
   "phd.log-directory" : "/var/log/phabricator/",
   "phd.user" : "{{ phabricator_daemon_user }}",
   "storage.local-disk.path" : "{{ phabricator_filedir }}",
+  "repository.default-local-path" : "{{ phabricator_repodir }}",
   "environment.append-paths" : ["/usr/libexec/git-core/"],
   "diffusion.ssh-user" : "{{ phabricator_vcs_user }}",
   "welcome.html" : "{{ lookup("file", "phabricator-welcome.html") }}",