This commit exposes the Max fetch constants to allow package users to
externally reimplement any part of the API abstractions without having
to redeclare more constants.
remove boundary limits for DeleteMessages
rename deleteMessages to deleteMessagesRaw
use constant instead of limit literal
add min helper func
rename utils.go to math.go
* API: fix faulty pagination behavior
This fix fixes a condition which lead to all messages getting fetched if the limit was a multiple of 100, instead of just the limit.
* API: add NewestMessages
* API: clarify MessageAfter docs
* API: adapt paginating methods for guild, member and message reaction to match the style of message's pagination methods
* API: return nil if no items were fetched
* API: remove Messages and Rename NewestMessages to Messages