Debugging defaults to on

[mattst]

I just noticed that ExpandRegion is printing debug data to the console every time I use it.

This is clearly because in the file ExpandRegion.py, the run() method of the ExpandRegionCommand class has its debug parameter defaulting to true.

Since I am familiar with writing ST plugins I was able to stop this in my key bindings with:

{ "keys": ["whatever"], "command": "expand_region", "args": {"debug": false} },

I suggest that you change the run() method's debug parameter so that it defaults to false.

class ExpandRegionCommand(sublime_plugin.TextCommand):
    def run(self, edit, language="", undo=False, debug=False):

To aid users in debugging you could add a debug setting or at least suggest the addition of "args": {"debug": false} in the keys section of README.md so they are aware that debugging can be turned on/off.