WCS updates needed for GeoExt work

Update the names of the WCS 1.0.0 attributes from name/label to identifier/title to make them compatible with the values used for WCS 1.1.0.  This compatibility is needed for upcoming work on GeoExt.

This breaks with the pattern of sticking with the earliest defined names because those names were ambiguous, and the 1.1.0 names are much better to use moving forward.