ValueError in random string generator

[DarkCat09]

I've recently run unit tests and have found a bug in generate_aternos_rand function.
It raised a ValueError exception.

To reproduce the bug, just call random string generator in an endless loop:

>>> from python_aternos import AternosConnect
>>> conn = AternosConnect()
>>> while True:
...     a = conn.generate_aternos_rand()
... 
Traceback (most recent call last):
  File "<stdin>", line 2, in <module>
  File "/home/darkcat09/code/python-aternos/python_aternos/atconnect.py", line 128, in generate_aternos_rand
    rand_alphanum = self.convert_num(rand, 36) + ('0' * 17)
  File "/home/darkcat09/code/python-aternos/python_aternos/atconnect.py", line 154, in convert_num
    num = int(sliced)
ValueError: invalid literal for int() with base 10: '7897404767541758e-05'
>>>

The problem is in the generator algorithm.
It was copied from Aternos JavaScript code without any checks.
So, the function must be rewritten.

[DarkCat09]

Fixed in 154b2c2