In molecule::OutputTrajectories() ActOnAllAtoms() with new function atom::OutputTrajectory() is used.
For this to work, I had to change the Trajectory struct that was so far included in molecule.hpp to be incorporated directly into the class atom.
NOTE: This incorporation is incomplete and a ticket (#34) has been filed to remind of this issue.
However, the trajectory is better suited to reside in atom anyway and was probably just put in molecule due to memory prejudices against STL vector<>.
Functions in molecule.cpp, config.cpp, molecule_geometry.cpp and molecule_dynamics.cpp were adapted (changed from Trajectories[atom *] to atom *->Trajectory).
And the atom pointer in the Trajectory structure was removed.
