Update receiver.py to allow multiple msg handlers

[Tzaoh]

I would like to attach several handlers.
In the future maybe this could be updated to use threads?

[Tzaoh]

Actual code to make this work is:

def main():

    tg = Telegram(
        telegram="/usr/bin/telegram-cli",
        pubkey_file="/etc/share/telegram-cli/server.pub"
    )

    receiver = tg.receiver
    sender = tg.sender

    receiver.start()

    receiver.add_handler(text_handler(sender))
    receiver.add_handler(media_handler(sender))
    receiver.process_handlers()

    receiver.stop()

maybe process_handlers and start could be merged some way to make it cleaner.

[luckydonald]

maybe process_handlers and start could be merged some way to make it cleaner.
Yeah, that's a good idea then.

Can you update the documentation, too, when done? I'd be happy to merge then

[luckydonald]

Just say that you can register multiple handers, and edit the example code.

[luckydonald]

Nice. Thank you.

How can we archive backwards compatibility?
Keep a deprecated def message around?

from luckydonaldUtils.functions import deprecated 

@deprecated
def message(self, function):
    self.add_handler(function)
    self.process_handler()

[mv-go]

Any updates on this merge? Would really love to use multiple handlers!

[luckydonald]

With compatibility code for the old message decorator, it would probably be mergeable.
I'll see if I find time this week.