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.

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.

Fixed #86 in the process

Code cleanup for TelegramException.php

Code cleanup for `Commands`

Some typo corrections.

Initial code cleanup of `Admin commands`.

Smaller typo fixes.

No functional changes, only modifications of documentation and code layout.

No functional changes, only modifications of documentation and code layout.

Code cleanup of Command.php

Code cleanup of Request.php

Initial code cleanup of `DB.php`.

No functional changes, only modifications of documentation and code layout.

No functional changes, only modifications of documentation and code layout.
Also corrected a few error messages.

No functional changes, only slight modifications of documentation and code layout.

No functional changes, only slight modifications of documentation and code layout.
This commit is mainly to discuss with the project members if this style is ok and can be further refined.