added force monitoring output
fixed openMP inconsistency
commented the code a bit
output format for dt adjusted for easier plotting
corrected output of forces
outsourced force monitoring into separate function
Force monitoring now via an Integrator input parameter MonitorForces, computes the forces once at the beginning of each trajectory
oversight in read_input.l output corrected
Merge pull request #236 from urbach/ForceMonitoring

Force monitoring