🎉 3.0.0 (TextureGroup#1883) 

I forgot this in the last PR and I'm pushing to master, I'm a bad per… …son.

Prepare for 3.0.0-rc.1 release 

Cleanup from recent changes (TextureGroup#1647) - Fix availability warnings for usage of userInterfaceLevel - Deprecate `asyncTraitCollectionDidChange` in favor of the new method - Remove old compiler warning flag added for Xcode 9 building - Access `textColorFollowsTintColor` with a locked scope

ASSignpost: Add support for the os_signpost API, fixes (TextureGroup#… …1501) * ASSignpost: Add support for the os_signpost API - Removes support for colored intervals. These weren't really useful and they aren't part of the signpost api. - Fixes an issue with range controller interval logging. - Adds an interval for interface orientation changes. * Rename * Support Xcode 9 * Commentary

Cut version 2.8.1 

Correct attributes lookup for supplementary elements. (TextureGroup#1318 )

Correct attributes lookup for supplementary elements. (TextureGroup#1318 )

[Updated Snapshots] Don't add extraneous truncation token during kCTL… …ineTruncationMiddle (TextureGroup#1375) * Don't add extraneous truncation token during kCTLineTruncationMiddle * Expand these comments a little. * Update snapshot tests with beautiful correct behavior