Global cell indices for mesh
updating FindTAO.cmake from petsc example and add the linking to blas in the test to avoid failure
Merged fenics-project/dolfin into master
Merged fenics-project/dolfin into master
Merged fenics-project/dolfin into master
Merged fenics-project/dolfin into master
Merge with nag-dcse/master
Merge branch 'master' into hdf5_cell_indices
Update benchmark for rename UnitCube --> UnitCubeMesh
Add benchmark for interpolation between meshes
Read back cell indices from mesh
Fix Function call with Point, as reported by Jan Blechta
  -- add unit test for Function eval
  -- fix faulty eval test in Expression
Add collective check for init_facets in DirichletBC
const fixes.
Minor formatting change.
Fix an Expression unit test.
Add mutable shared bounding box tree member to Mesh class.
Merge branch 'chris/hdf5-cell-indices'
Benchmark inter-mesh interpolation between DOLFIN and CGAL:

CGAL:   0.944838047028 s
DOLFIN: 0.713277101517 s

Both options still implemented in the Function class and selected
via parameter use_cgal_intersection. New implementation looks correct
and is faster than CGAL so the next step will be to remove the CGAL
implementation in the Function class.
Remove use of CGAL from Function class. Cleanups needed.