STYLE: Avoid add .orig files from merges.
ENH: Provide more robust testing.  False positives were reported when zero fibers were found.
COMP: remove output files before running tests
COMP: clean up QuadProg++_vnl.cc
PERF: Refactoring again to minimize memory copies.

Continue to push variables to be local and remove
unnecessary intermediate variables. Also use const
reference pointers where possible to avoid unncessary
copying of memory.
PERF: Replace LU with Eigen equivalent

This is the first test at repalcing matrix
solution with Eigen equivalent version.
PERF: Ensure that the FilterModel used for initialization never changes.
COMP: intermediate changes to get rid of vnl_vector_ref
WIP:
ENH: Conversion to Eigen continuation.
WIP Working on Fix for failing tests.
WIP: Remove printf debugging.