continue clean and up support for wrap range
Bugfix:
- Improved hdf5 library detection
Merge branch 'develop' of https://github.com/feelpp/feelpp into develop

Conflicts:
	cmake/modules/FindFeel++.cmake
Issue #446:
- Fixed use of local worldcomm for MeshPoints structure
- Use the local worldComm in the Gmsh exporter (previously missing)
- Removed some remaining uses of Environment::worldComm()
up support list of range with u.on(...) or vf::project(...)
Fix #446:
- Force the user to specify the worldcomm in the MeshPoint structure
- Updated ensight gold exporter code to use the worldComm member of
  exporter
Working on #456:
- Fixed the ensight gold exporter for multiple geo files when in static
  mode
Merge branch 'develop' of https://github.com/feelpp/feelpp into develop
Issue #419:
- Attempt to solve the issue by defining BOOST_PP_VARIADICS=0 for clang
Merge branch 'develop' of github.com:feelpp/feelpp into develop
Merge branch 'develop' into feature/operator
start implementation of #460