echat - feature-rich chatbox

Esclib:

1. Removed some unnecessary prints.
2. Removed standard registered fonts (Since adaptive fonts are used)
3. Added check for some variables, the lack of which could cause an error in case of no response from the server.
4. Fixed almost all table.Merge functions that could magically cause StackOverflow error.
5. Slightly changed internal file structure related to settings menu.Added rank_display [bool] parameter to form setting type.