Hotfix README
Merge branch 'master' into develop
README: Add ramble and mention shells
Proofing fail
Focus twiggy buffer, if visible, after creating a branch

This fixes a rather bad bug where twiggy will be drawn into the currently
focused buffer after issuing :Twig new-branch
Fix TwiggyIconUnmerged syntax
Control Ewe
Tighten-up refresh strategy
Feature: Group locals by first slash (/)

Change S map to a
Document groupings and new defaults
Add I and gI mappings and change sort array
Fix cursor jump after deleting a branch
Change undocumented abort mapping

...and document it
Add cheap jump to current branch mapping
Fix delete from remote
Tighten-up initializing line logic
o_O
Require opt-in for dangerous mapping
Simplify delete logic
Update README for release