Bugs arisen while using external simulator fixed#5

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csiki wants to merge 3 commits intopfriedrich:masterfrom

Commits on Aug 1, 2014

changed Core and traceHandler to take into account contains time option on GUI; fixed graphic to be albe to load arrow images when using external simulator - self.path set to absolute so chdir does…
csiki
committed
IOError added again to hide exception when opening spike.dat in Core
csiki
committed
traceHandler takes into account contains time GUI checkbox
csiki
committed