Make the feedback commands (help & errors) more estethic and comprehensible

[s0lst1ce]

• Error formatting
• Interactive help command

[s0lst1ce]

I was thinking that although nice the current error feedback messages weren't the best.
For example ERR_NOT_ENOUGH_ARG returns This command requires additional arguments. See ::help <command> to get more information on the command's usage"
A nicer way to do this would be to send an embed instead. Something in the likes of
.

And we wouldn't even need to import discord in settings.py. Instead we could make all errors a tuple of (title, explanation). With a simple function we could easily send this feedback. What are your thoughts on this?

[s0lst1ce]

Last comment's recommendations have been fully implemented.

[s0lst1ce]

Although the help command is now fully implemented I think it could be made much better in a few ways:

• allowing navigation through reactions
• better formatting of the help pages

[s0lst1ce]

We will also need to rewrite some docstrings (see #66 ) because of how the arguments are now differentiated. The README will have to be updated too.

• Update README

[s0lst1ce]

FIXED: Something in the last commit makes it fail. Investigating...

[s0lst1ce]

Help pages should also contain command aliases.

[s0lst1ce]

DONE: They should also contain page numbering.

[s0lst1ce]

Currently doesn't support help in DMs

[s0lst1ce]

For now it has been chosen that anyone will be able to react on anyone's help pages. This is an issue but will be fixed later. If any of you have ideas on how to prevent this I'm open to suggestions.

[s0lst1ce]

Group and cog description currently only support up to one page.

[s0lst1ce]

Maybe it would be better to turn the various get_pages functions into generators so that they only fetch the required pages. We would have to pre-calculate the pages though and store them so that they are not re-generated.

[s0lst1ce]

This is done, still a few possible improvement but this issue is fixed.