Minor fixes for unnecessary warnings/exceptions (#1542)
Minor fixes for unnecessary warnings/exceptions (#1542)

* redim.label no longer excepts if label is unchanged

* Only warning of label override when changed

ioam/holoviews,ioam/holoviews,basnijholt/holoviews,basnijholt/holoviews,basnijholt/holoviews,ioam/holoviews