Fix for channels where chat_id can be a text (developers should use getChat() to get numeric value!)

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]

Missed a deprecated hide keyboard method call.

[skip ci]

Prepare for 0.38.0 release.

Fix some error outputs.

Update webhookinfo entity with the latest additions by Telegram.

As this only breaks BC for users with self-signed certificates, I'm merging here...

Add new switch_inline_query_current_chat option to inline keyboard.

Add support for channel_post and edited_channel_post