This is an update to the upstream release version of mshr as well as
a migration from python2 to python3. Please accept the request for
the prerequisit package dolfin before this.

- update to upstream release 2016.2.0 [2016-11-30]
* Improvements and bugfixes
* Upgrade to CGAL 4.9 and use CGAL as header only library
release 2016.1.0 [2016-06-23]
* Major improvements, in particular boundary conditions
- added patch
* mshr-cmake-checking-fixes.patch (corrects linking errors)
- refreshed patch
* mshr-fix-cmake-install-path.patch
- removed patch
* cmake-3.3-string-replace.patch (no longer applicable)