Seems I missed this originally, whoops.

The previous name was causing some confusion

Currently, commands are case-sensitive. This PR allows for commands to be case insensitive (which is now the default option).

Conflicts:
	src/Discord.Net.Commands/CommandService.cs

For a command to use the DefaultRunMode, it must now have it's RunMode set to RunMode.Default (this is the default value on CommandAttribute now).

This adds an (optional) CommandServiceConfig, as well as a DefaultRunMode for commands.

This resolves #368 (for commands where a RunMode is not explicitly specified, a custom default value should be used)

This is a breaking change.

Adds a precondition that requires the bot has a specified permission (Resolves #211).

Renames RequirePermission to RequireUserPermission.

This precondition will require that the invoker of the command is the owner of the bot.

This should Fix #262

This probably isn't all of them. This is what I get for copy+pasting code.

In theory this should just work, more testing is needed though

Values in ImmutableDictionaries were strings rather than enumType

Right now commands require a module before they can be created;
I'm looking to remove this in the future.