Prep for V1 release

[jdmcd]

• [X] Verify README
• [X] Verify supporting GitHub docs
• [X] Verify API docs
• [X] Verify guide docs
• [X] Clean up issues
• [X] Clean up PRs
• [X] Clean up branches
• [X] Remove deprecations

[jdmcd]

@tanner0101 this is ready for one last final review! So close to 1.0 :)