Update unicorn to v2.0.0-rc7
Update unicorn to v2.0.0-rc7

JPeterMugaas/MINGW-packages,stahta01/MINGW-packages,Alexpux/MINGW-packages,fabiangreffrath/MINGW-packages,Alexpux/MINGW-packages,stahta01/MINGW-packages,JPeterMugaas/MINGW-packages,oscarfv/MINGW-packages,lhmouse/MINGW-packages,oroppas/MINGW-packages,lhmouse/MINGW-packages,oroppas/MINGW-packages,stahta01/MINGW-packages,lhmouse/MINGW-packages,oscarfv/MINGW-packages,Alexpux/MINGW-packages,oroppas/MINGW-packages,Alexpux/MINGW-packages,Alexpux/MINGW-packages,JPeterMugaas/MINGW-packages,fabiangreffrath/MINGW-packages,oscarfv/MINGW-packages,JPeterMugaas/MINGW-packages,oroppas/MINGW-packages,Alexpux/MINGW-packages,oscarfv/MINGW-packages,oscarfv/MINGW-packages,stahta01/MINGW-packages,fabiangreffrath/MINGW-packages,oscarfv/MINGW-packages,JPeterMugaas/MINGW-packages,lhmouse/MINGW-packages,lhmouse/MINGW-packages,stahta01/MINGW-packages,stahta01/MINGW-packages,oroppas/MINGW-packages,fabiangreffrath/MINGW-packages,JPeterMugaas/MINGW-packages,oroppas/MINGW-packages,fabiangreffrath/MINGW-packages,fabiangreffrath/MINGW-packages,lhmouse/MINGW-packages