Get rid of TextStyle (not used anymore, use ColorScheme instead)
Automatically unfold scope when using goto_line
Improve WordClickMode: do not highlight word if it is not possible to perform an action.

Subclasses must implement this check. In pyqode.python, we use it for the GoTo mode. We check that there is at least one definition to go to before highlighting the word
Open fold scope when using goto line: fix bug if block is the fold trigger
Interactive: use _logger() instead of logging