AdvancedServerList

This release adds 3 new Operands to use, adobted from the TAB plugin:

• |- to check if the left value starts with the right value
• -| to check if the left value ends with the right value
• <- to check if the left value contains the right value

I also consider the plugin stable now, as I haven't been reported any issues with the expression system so far, so 3.7.0 is now here!