current event needs to be updated in the right place (at success)
reading the file needs to flag when the end had been reached
Issues discovered during testing

Clearer status message in moveToEvent functions, change verbosity for particle printout in HepMC, add comment

Fix hundreds of std=c++11 compiler warningsAllow to change compiler settings in cmake/DD4hep.cmake valid for all packages.Watch out for CMAKE_CXX_FLAGS in cmake/DD4hep.cmake.Move to use Boost spirit::phoenix version 3. ---- Prepare for ROOT 6

No code changes. Common code formatting removing tabs, replacing with spaces (tab-size=-2) + emacs reformatting.

First implementation of dipole field, HepMC reader for DDG4 and fix to import constants into DDG4 python