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
Update README for release
Simplify delete logic