All changes:
- import the new division operator and the print function
- replace the %-formatting with .format()
- full PEP8 compliance
- major code cleanup: new function send_cmd() to send an IRC command,
split flood() function into many functions.
The messages sent from a file (or stdin) are formatted with
".format(self=self)", so that attributes from class Client are replaced
with their values. You can use for example these attributes:
{self.nick} current client nick
{self.name} the server name ('weercd')
{self.version} the server version (version of weercd.py)
591b111891