diff --git a/development.ini b/development.ini
--- a/development.ini
+++ b/development.ini
@@ -46,16 +46,17 @@ port = 5000
 use = egg:rhodecode
 full_stack = true
 static_files = true
-lang=en
+lang = en
 cache_dir = %(here)s/data
 index_dir = %(here)s/data/index
-app_instance_uuid = develop
+app_instance_uuid = rc-develop
 cut_off_limit = 256000
 force_https = false
 commit_parse_limit = 25
 use_gravatar = true
 container_auth_enabled = false
 proxypass_auth_enabled = false
+default_encoding = utf8
 
 ## overwrite schema of clone url
 ## available vars:
@@ -86,6 +87,11 @@ issue_server_link = https://myissueserve
 
 issue_prefix = #
 
+## instance-id prefix
+## a prefix key for this instance used for cache invalidation when running 
+## multiple instances of rhodecode, make sure it's globally unique for 
+## all running rhodecode instances. Leave empty if you don't use it
+instance_id = 
 
 ####################################
 ###        CELERY CONFIG        ####
@@ -179,7 +185,7 @@ beaker.session.auto = False
 ##true exire at browser close
 #beaker.session.cookie_expires = 3600
 
-    
+
 ################################################################################
 ## WARNING: *THE LINE BELOW MUST BE UNCOMMENTED ON A PRODUCTION ENVIRONMENT*  ##
 ## Debug mode will enable the interactive debugging tool, allowing ANYONE to  ##