implement and document higher level :fix ops
implement nav's pick-option and :state & :select
allow optional trigger fn in nav-entry declaration
extend nav state with an eager/lazy deps mechanic
interpret a nil screen arg to :fix as current
remove redundant assoc in :next handling
add optional :handles setting to nav/pick-option
fix :fix's :prepend
add hop as custom nav-action & pick-option setting
rename nav cfg's :key-binds to :keybinds
add i9n multimethod to handle interactions/widgets
fix update-state(s) :state path
rename i9n to custom-i9n and refactor map actions
fix demo compilation adding src/plugins
enlightened 0.2.4