Add config option: Picture cache path

conf/app.ini

@@ -44,6 +44,8 @@ REGISTER_EMAIL_CONFIRM = false
 DISENABLE_REGISTERATION = false
 ; User must sign in to view anything.
 REQUIRE_SIGNIN_VIEW = false
+; Cache avatar as picture
+ENABLE_CACHE_AVATAR = false
 
 [mailer]
 ENABLED = false
@@ -70,6 +72,12 @@ INTERVAL = 60
 ; memcache: "127.0.0.1:11211"
 HOST =
 
+[picture]
+; The place to picture data, either "server" or "qiniu", default is "server"
+SERVICE = server
+; For "server" only, root path of picture data, default is "data/pictures"
+PATH = data/pictures
+
 [log]
 ; Either "console", "file", "conn" or "smtp", default is "console"
 MODE = console