started work on error animation
Merge branch 'gradient_time_synchronization_protocol' of https://github.com/Jentsch/RIOT into gradient_time_synchronization_protocol

Conflicts:
	examples/timesync/dist/loganalyzer.py
cont. working on global error
Merge branch 'gradient_time_synchronization_protocol' of https://github.com/Jentsch/RIOT into gradient_time_synchronization_protocol

Conflicts:
	examples/timesync/dist/loganalyzer.py
various improvements
added cmd line args for pulsesync
fixed pulsesync experiment
fixed pulsesync experiment2
global error plot
Allow multiple log dirs
Various imprments