buttons were not resetting their enable when new duct was selected
add new modes for displying materials
fix comp errors on linux

Still will not work on Fedora 20, netcdf will not find non-system hdf5 and meshkit will not build
Merge branch 'fix_linux_meshkit_superbuild' of epsilon3:scivis/local_rgg into update_material_options
keep color visible
fix delete bug
rename options based on Bob's suggections
update connection
add clear method to 2d drawer
Merge pull request #5 from judajake/fix_clear_all_2d_view_bug

add clear method to 2d drawer
Merge pull request #4 from judajake/update_material_options

Update material options
Merge pull request #3 from judajake/Fix_Duct_Interface_Bug

buttons were not resetting their enable when new duct was selected