fix typo
Update 05-iterators-generators.slim
Add 8th lecture
Add lecture 9(Exceptions and with)
Fix some errors
Part of the code is obsolete

Кода в лекцията е валиден за Python2. В Python3 функциите в библиотеката са разделени на urllib.request и urllib.error.
Лекция 10: Дебъгване
Merge pull request #24 from Gerasim-Stan/master

Part of the code is obsolete
Merge pull request #23 from GerganaPetrova/master

Fix some errors
Merge pull request #7 from A4unecabrat/patch-1

fix typo
Merge pull request #22 from stcakova/patch-7

Update 05-iterators-generators.slim
Fix pep8 conventions.

Fix pep8 conventions in example from slide 8 in lecture 10.
Merge pull request #26 from bobeff/10-debugging-fix-source-conventions

Fix pep8 conventions.
Add last two lectures
Add lecture about threading
Fix the number of threading lecture
Add lecture 14 for asyncio