removed redundant impex tests (are now in directory test/impex)
removed redundant impex tests (are now in directory test/impex)

kod3r/vigra,cha007/vigra,capturePointer/vigra,capturePointer/vigra,funkey/vigra,cbecker/vigra,cha007/vigra,dagophil/vigra,DaveRichmond-/vigra,dagophil/vigra,ThomasWalter/vigra,xiwei-zhang/vigra,DaveRichmond-/vigra,martinsch/vigra,stuarteberg/vigra,mmuellner/vigra,DaveRichmond-/vigra,cbecker/vigra,capturePointer/vigra,dagophil/vigra,funkey/vigra,timoMa/vigra,hmeine/vigra,ThomasWalter/vigra,DaveRichmond-/vigra,xiwei-zhang/vigra,ThomasWalter/vigra,kod3r/vigra,cha007/vigra,timoMa/vigra,cha007/vigra,dstoe/vigra,kod3r/vigra,hmeine/vigra,timoMa/vigra,psteinb/vigra,xiwei-zhang/vigra,capturePointer/vigra,xiwei-zhang/vigra,martinsch/vigra,mmuellner/vigra,capturePointer/vigra,martinsch/vigra,dstoe/vigra,cbecker/vigra,hmeine/vigra,mmuellner/vigra,dstoe/vigra,cha007/vigra,dstoe/vigra,DaveRichmond-/vigra,kod3r/vigra,kod3r/vigra,kod3r/vigra,funkey/vigra,psteinb/vigra,mmuellner/vigra,mmuellner/vigra,ThomasWalter/vigra,dagophil/vigra,stuarteberg/vigra,hmeine/vigra,dagophil/vigra,ThomasWalter/vigra,funkey/vigra,kod3r/vigra,psteinb/vigra,hmeine/vigra,stuarteberg/vigra,funkey/vigra,mmuellner/vigra,DaveRichmond-/vigra,dagophil/vigra,cbecker/vigra,capturePointer/vigra,cha007/vigra,stuarteberg/vigra,hmeine/vigra,timoMa/vigra,funkey/vigra,stuarteberg/vigra,ThomasWalter/vigra,ThomasWalter/vigra,timoMa/vigra,DaveRichmond-/vigra,stuarteberg/vigra,hmeine/vigra,psteinb/vigra,xiwei-zhang/vigra,funkey/vigra,psteinb/vigra,martinsch/vigra,psteinb/vigra,martinsch/vigra,martinsch/vigra,dstoe/vigra,mmuellner/vigra,cbecker/vigra,xiwei-zhang/vigra,psteinb/vigra,cbecker/vigra,dstoe/vigra,cha007/vigra,capturePointer/vigra,timoMa/vigra,xiwei-zhang/vigra,dstoe/vigra,stuarteberg/vigra,dagophil/vigra,timoMa/vigra