* abstract BitField from Permissions
* reduce useless code, improve docs
* add a ReadOnly identifier to the return type of Bitfield#freeze()
https://www.typescriptlang.org/docs/handbook/release-notes/typescript-2-1.html#partial-readonly-record-and-pick
* fix the RangeError
* update docs, convert Speaking and ActivityFlags to bitfields
* fix some docs
* Fix Speaking BitField oops
* docs for oops
* more incorrect docs
* Fix incorrectly named property
* add new classes to index
* fix missing @extends docs
* default bitfield resolve to 0, and cleanup defaulting everywhere
Also removes GuildMember#missiongPermissions() alias that had incorrect behavior
* Breaking: Rename Overwrite allowed and denied to allow and deny
To be consistent with the api's naming
* fix setSpeaking usage to bitfields instead of booleans
* fix speaking bug in playChunk
* docs: Updated typings
* fix: BitFieldResolvable should use RecursiveArray
* bugfix/requested change
* typings: Cleanup (#2)
* typings: Fix BitField#{toArray,@@iterator} output type
* typings: correct PermissionOverwrites property names and nitpicks
