Use PHP_EOL for new lines.

Fix param types

Fix Telegram request parameters

Due to the way that Telegram interprets the request URL, http_build_query that Guzzle uses doesn't work properly. Instead, we now convert all arrays to JSON encoded strings, which get interpreted correctly!

Add handler command for pinned_message

Simplify some code bits.

Update code style.

Implement new api changes

Scrutinizer fixes

Add docblocks for Exceptions being thrown.

Use string instead of bool to satisfy type for paths.

Botan improvements and misc fixes

Simplification

Simplify short_url fetching.

[skip ci]

Fix self-signed certificate usage

When using a self-signed certificate, guzzle uses a multipart stream, which doesn't allow arrays, so they need to be encoded to JSON first.
[skip ci]