Changes

• Canned messages have three additional integere attributes which can be used in extensions
• https://github.com/LiveHelperChat/livehelperchat/issues/670
• Canned messages now has fallback option. Let say if original message does not have a replacable variable canned message will be the fallback one.
• In custom form fields there is new field "Field identifier" it can be used in canned messages.
• A lot of override options. Usefull for extesnions.
• Bunch of dispatches events around a places. Just gives more flexibility without overriding all module file.

For update just follow standard update procedure For manual update it's update_107.sql