Fenics-ffcx

------------------

- Change license from GPL v2 to GPL v3 or later
- Add JIT (just-in-time) compiler
- Fix bug for constants on interior facets

------------------

- Fix bug in simplification of forms
- Optimize removal of unused terms in code formattting

------------------

- Move to UFC interface for code generation
- Major rewrite, restructure, cleanup
- Add support for Brezzi-Douglas-Marini (BDM) elements
- Add support for Raviart-Thomas (RT) elements
- Add support for Discontinuous Galerkin (DG) methods
- Operators jump() and avg()
- Add quadrature compilation mode (experimental)
- Simplification of forms
- Operators sqrt(), abs() and inverse
- Improved Python interface
- Add flag -f precision=n
- Generate code for basis functions and derivatives
- Use Set from set module for Python2.3 compatibility

------------------

- Bug fixes
- Move from Numeric to numpy

------------------

- Updates for new DOLFIN mesh library
- Add support for evaluation of functionals
- Add operator outer() for outer product of vector-valued functions
- Enable optimization of linear forms (in addition to bilinear forms)
- Remove DOLFIN SWIG format
- Fix bug in ffc -v/--version (thanks to Ola Skavhaug)
- Consolidate DOLFIN and DOLFIN SWIG formats (patch from Johan Jansson)
- Fix bug in optimized compilation (-O) for some forms ("too many values to unpack")

------------------

- Fix bug in operator div()
- Add operation count (number of multiplications) with -d0
- Add hint for printing more informative error messages (flag -d1)
- Modify implementation of vertexeval()
- Add support for boundary integrals (Garth N. Wells)