Bug fix for dataset surface filter.

Internal surfaces were previously shown when using polyhedron cells.

Change-Id: I377bcfd36d1ce6ebe1b8bdf25db1c286399b5729
STLReader: Close the file when an error occurs

Change-Id: I38a189e6af609836a846d892050440e69473a9b7
ExodusIIReader: Add the title to the field data

Change-Id: I30268a666f3b3dd65ff8085524007d2ab57d357f
STLReader: Fix error signaling when reading files

The RequestData return value of 0 means an error and make the actual
reader implementations return a boolean.

Change-Id: I3caf27782fb34e5e5474f40ef8d466bda61cd12c
Merge topic 'fix-dataset-surface-filter-for-polyhedron-cells2' into master

4af6a724 Bug fix for dataset surface filter.
Merge topic 'ply-reader-error' into master

486b71ee STLReader: Fix error signaling when reading files
37d058e5 STLReader: Close the file when an error occurs
Merge topic 'exodus-title' into master

a1f1505c ExodusIIReader: Add the title to the field data