finally implemented tickrate.
clockpanel got the methods resetTickrate, which sets the tickrate of all
clocks to 1.
it also got the method setTickrate(tickrate, posX,posY) which allows you
to set the tickrate of a specific clock. use iterations to change
multiple clocks
Merge branch 'master' of https://github.com/HAWJulian/MG1.git

Conflicts:
	MG1/src/gui/ClockPanel.java