Rapptz 53b4890435 Add category support.
This adds:

* CategoryChannel, which represents a category
* Guild.by_category() which traverses the channels grouping by category
* Guild.categories to get a list of categories
* abc.GuildChannel.category to get the category a channel belongs to
* sync_permissions keyword argument to abc.GuildChannel.edit to sync
  permissions with a pre-existing or new category
* category keyword argument to abc.GuildChannel.edit to move a channel
  to a category
2017-09-13 09:44:36 -04:00
..
2017-09-13 09:44:36 -04:00
2017-08-21 01:57:07 -04:00
2017-05-13 21:31:38 -04:00
2017-08-25 09:07:30 -04:00
2016-04-15 21:53:35 -04:00
2017-09-13 09:44:36 -04:00