fix focus issues on detailview load
add hn#pathToNode and specs; add dC#withinScope; fix usability bugs for act view: add guards (using withinScope) for bubbling up and down; add guards for selecting hidden humon nodes
fix another nodeContentBinding bug (for newly iserted views). fix by moving Ember.run.sync to didInsertElement of Detail view
add withinScope check for dC.bubbleDown
fix bug re: removing autogrow-shadow fields: content-field#willDestroyElement now calls @removeAutogrow(). allow multiline (vertically growing) val fields; update autogrow-plus to check vertial case for whether shadow node is inserted -- buggy case; shift all alignment of content-fields to vertical-align top