Fixed docstring of compile_extension_module to make it actually compile
Fix issue #228: CMAKE_CXX_FLAGS missing in CMakeLists.txt for demos
Added DOLFIN_CXX_FLAGS to generate-cmakefiles
Added note to jit compiler unit test to remind us to modify docstring of compile_extension_module if test is changed.
Change how DOLFIN_CXX_FLAGS gets included in demo CMake files
Merge branch 'mikael/compilemodule-docstring'
Small fix for storage of python definitions in dolfin-config.cmake
Merge branch 'logg/fix-issue-228'