Reordered methods and add values method to AttrTree
Reordered methods and add values method to AttrTree

vascotenner/holoviews,ioam/holoviews,vascotenner/holoviews,mjabri/holoviews,basnijholt/holoviews,basnijholt/holoviews,vascotenner/holoviews,basnijholt/holoviews,mjabri/holoviews,ioam/holoviews,ioam/holoviews,mjabri/holoviews