Fixed bug: Wrong value for starting position of one clipping plane.
Improved GapGrid functionality: User can specify minimum amount of vertices for faces to be drawn.
Fix default WCPS query syntax.

Extra } left over when simplifying image query in bgsmase pull
request #3 was ignored by rasdaman v9.0.3 but v9.0.4 is stricter.
Also left .red range subset specifier by mistake.
v9.0.4 compatibility fix in default query

Changing char -> unsigned char in alpha band DTM query
Not backwards compatible but can't be helped.
v9.0.4 fix to WCPS query char -> unsigned char

Make example query v9.0.4 compatible (not backwards compatible).
Use new option to specify number of non nodata values

Otherwise draws polygons to include nodata values.
Layer separation based on order of models.

Explode layers based on model position in order rather than DTM
values. Not necessarily robust but much better, works for Glasgow
layers.
Fix interaction of vert exaggeration and offsetting

Make updateOffset method remember original vertical exaggeration so
that can calculate minimum values for offsets and translations
correctly. This was done in updateElevation method already.
Merge pull request #4 from bgsmase/bugfix_wcps_syntax

Assorted fixes to WCPS syntax and rasdaman v9.0.4 compatibility changes
Merge branch 'master' into feat_separate_on_model_order

Various WCPS query fixes especially for v9.0.4 compatibility.
Merge branch 'feat_separate_on_model_order' into feat_voxel_and_surface

Keeping feature branch up-to-date with latest changes.