Fix missing namespace use.

Set default log verbosity on object creation to prevent potentially overwriting the value when calling setLogRequests().

Fix getUpdate handler to incorporate new Update processing.
execute() method for ALL commands must now return a ServerResponse object, not a bool!!
handle() now returns a bool, handleGetUpdates() still returns a ServerResponse object.

Remove $command from commands, not needed.
Minor docblock corrections.

Rewrite custom JSON input for debugging. Remove custom JSON input in handle() method.
Fix issue that disabled or invalid commands died silently. Always output some "Command not found" message.

Correct and complete a few docblocks.

Fix some documentation and error outputs.

fix use command

Move start command to the system commands.

Commands are split up into 3 categories: System, Admin and User.
They can be overridden individually by custom command directories.
STILL ALPHA STAGE!

Excody fix

Fixes typo in word Webhook

Just inherit repeating documentation blocks

Merge branch 'some_code_cleanup' of https://github.com/akalongman/php-telegram-bot into some_code_cleanup

# Via Armando Lüscher (1) and Marco Boretto (1)
* 'some_code_cleanup' of https://github.com/akalongman/php-telegram-bot:
  Clean Admin commands, removing all unnecessary or unused code.
  Small typo fixes.
  Remove all unused `use` definitions.
  Remove any unnecessary code from commands. Changes include: - Removed the definitions of member variables that had the same values as their inherited defaults. These can be removed since the default values apply anyway. - Removed superfluous code form execute command.

Conflicts:
	src/Admin/ChatsCommand.php
	src/Admin/SendtoallCommand.php
	src/Admin/SendtochannelCommand.php
	src/Commands/ChannelchatcreatedCommand.php
	src/Commands/ChoseninlineresultCommand.php
	src/Commands/DateCommand.php
	src/Commands/DeletechatphotoCommand.php
	src/Commands/EchoCommand.php
	src/Commands/GenericCommand.php
	src/Commands/GenericmessageCommand.php
	src/Commands/GroupchatcreatedCommand.php
	src/Commands/HelpCommand.php
	src/Commands/InlinequeryCommand.php
	src/Commands/LeftchatparticipantCommand.php
	src/Commands/NewchatparticipantCommand.php
	src/Commands/NewchattitleCommand.php
	src/Commands/SlapCommand.php
	src/Commands/StartCommand.php
	src/Commands/SupergroupchatcreatedCommand.php
	src/Commands/WeatherCommand.php
	src/Commands/WhoamiCommand.php

Remove any unnecessary code from commands.