Finally found few hours to release new version of LHC, this time small few enhancements

1. Option to force close chat on widget close button. At the moment it just closes widget. But on operator side there is no indication for that. 
2. Custom field for sort priority
3. https://github.com/LiveHelperChat/livehelperchat/issues/800
4. https://github.com/LiveHelperChat/livehelperchat/issues/810
5. https://github.com/LiveHelperChat/livehelperchat/issues/803
6. https://github.com/LiveHelperChat/livehelperchat/issues/796

For update just follow standard update procedure For manual update it's update_115.sql