blamer: Theme blamer-avatar-folder

`blamer-avatar-folder' stores avatars corresponding to GitHub or GitLab
contributors.

Author: leungbk

no-littering.el

@@ -203,6 +203,7 @@ This variable has to be set before `no-littering' is loaded.")
     (setq bbdb-file                        (var "bbdb/bbdb.el"))
     (setq bbdb-vcard-directory             (var "bbdb/vcard/"))
     (setq binky-cache-directory            (var "binky/cache/"))
+    (setq blamer-avatar-folder             (var "blamer/avatars/"))
     (setq bm-repository-file               (var "bm-repository.el"))
     (setq bmkp-bmenu-commands-file         (var "bmkp/bmenu-commands.el"))
     (setq bmkp-current-bookmark-file       (var "bmkp/current-bookmark.el"))