Boost, VTK, Eigen
Closes #892.

Parallel VTU output

Surface and polyline output for class BoostXmlGmlInterface.

to remove file name extension for partitioned mesh data files.

[IO] Merge surface if-cond; add polylines empty test.

Multi-component sparsity pattern

Dmitri Naumov authored 9 years ago and wenqing committed 9 years ago

This avoids usage of getValues() functions needed
otherwise in matrix classes, which are simple copies
for serial cases and something not clearly defined
for the parallel cases.

Substituting clear ifdef USE_PETSC with some size
checks is misleading.

The results of this test are also included.

Rewrite of LisOption