Add some config options

conf/app.ini

@@ -1,12 +1,14 @@
-# App name that shows on every page title
+; App name that shows on every page title
 APP_NAME = Gogs: Go Git Service
-# !!MUST CHANGE TO YOUR USER NAME!!
+; !!MUST CHANGE TO YOUR USER NAME!!
 RUN_USER = lunny
+; Either "dev", "prod" or "test", based on martini
+RUN_MODE = dev
 
 [repository]
 ROOT = /Users/%(RUN_USER)s/git/gogs-repositories
-LANG_IGNS=Google Go|C|Python|Ruby|C Sharp
-LICENSES=Apache v2 License|GPL v2|MIT License|Affero GPL|BSD (3-Clause) License
+LANG_IGNS = Google Go|C|Python|Ruby|C Sharp
+LICENSES = Apache v2 License|GPL v2|MIT License|Affero GPL|BSD (3-Clause) License
 
 [server]
 DOMAIN = gogits.org
@@ -14,15 +16,25 @@ HTTP_ADDR =
 HTTP_PORT = 3000
 
 [database]
-# Either "mysql" or "postgres", it's your choice
+; Either "mysql" or "postgres", it's your choice
 DB_TYPE = mysql
 HOST = 
 NAME = gogs
 USER = root
 PASSWD =
-# For "postgres" only, either "disable" or "verify-full"
+; For "postgres" only, either "disable", "require" or "verify-full"
 SSL_MODE = disable
 
 [security]
-# !!CHANGE THIS TO KEEP YOUR USER DATA SAFE!!
+; !!CHANGE THIS TO KEEP YOUR USER DATA SAFE!!
 USER_PASSWD_SALT = !#@FDEWREWR&*(
+
+[mailer]
+ENABLED = true
+; Name displayed in mail title
+NAME = %(APP_NAME)s
+; Mail server
+HOST = 
+; Mailer user name and password
+USER = 
+PASSWD =