Bug fixes

Fix issue [#44](https://github.com/tindy2013/subconverter/issues/44).
Fix host setting missing for VMess TCP+TLS nodes.
Fix logical error in loading external configuration file.
Fix a potential multi-thread resource conflict.
Add rename and emoji option in external configuration file.

base/config/example_external_config.ini

@@ -2,6 +2,7 @@
 ;This is an example external configuration file
 ;All possible customization settings are shown below
 
+;Options for custom groups
 custom_proxy_group=Proxy`select`.*`[]AUTO`[]DIRECT`.*
 custom_proxy_group=AUTO`url-test`.*`http://www.gstatic.com/generate_204`300
 custom_proxy_group=google`select`.*
@@ -17,6 +18,7 @@ custom_proxy_group=屏蔽广告`select`[]REJECT`[]DIRECT
 custom_proxy_group=UnblockNeteaseMusic`select`云音乐解锁`[]DIRECT
 custom_proxy_group=Telegram`select`新加坡`[]Proxy
 
+;Options for custom rulesets
 enable_rule_generator=false
 overwrite_original_rules=false
 ;surge_ruleset=DIRECT,https://raw.githubusercontent.com/ConnersHua/Profiles/master/Surge/Ruleset/Unbreak.list
@@ -33,7 +35,16 @@ overwrite_original_rules=false
 ;surge_ruleset=🍎 苹果服务,https://raw.githubusercontent.com/ConnersHua/Profiles/master/Surge/Ruleset/Apple.list
 ;surge_ruleset=DIRECT,https://raw.githubusercontent.com/ConnersHua/Profiles/master/Surge/Ruleset/China.list
 
+;Options for custom base configuration file
 clash_rule_base=config/forcerule.yml
 ;surge_rule_base=surge.conf
 ;surfboard_rule_base=surfboard.conf
 ;mellow_rule_base=mellow.conf
+
+;Options for renaming nodes
+;rename=Test-(.*?)-(.*?)-(.*?)\((.*?)\)@\1\4x测试线路_自\2到\3
+;rename=rename_node=\(?((x|X)?(\d+)(\.?\d+)?)((\s?倍率?)|(x|X))\)?@$1x
+
+;Options for adding emojis
+;emoji=(流量|时间|应急),🏳️‍🌈
+;emoji=阿根廷,🇦🇷