impl coordinate converter
simplify UI
ignore settings
extract method
unknown change
don't call super. now dragging works
rm comment
create drag handler protocol and set up mouse events
set up notifications for drag handler
indent
wire up gvc
strong
link up GVC as drag handler
extract draghandler protocol
show when text is editable
draw a basic path from one item to another
Merge branch 'feature/refactor-viewcontroller-simplify' into dev

* feature/refactor-viewcontroller-simplify:
  draw a basic path from one item to another
  show when text is editable
  extract draghandler protocol
  link up GVC as drag handler
  strong
  wire up gvc
  indent
  set up notifications for drag handler
  create drag handler protocol and set up mouse events
  rm comment
  don't call super. now dragging works
  unknown change
  extract method
  ignore settings
  simplify UI
  impl coordinate converter