Added requirements.txt for pip
Added requirements.txt for pip

MarciavdPoel/sw2015-tutorial,BlackHawkNL/sw2015-tutorial,raviquast/sw2015-tutorial,PietroFerretti/sw-assignment4,idkashti/swAssingment4,callado/sw2015-tutorial,tavfan/sw2015-tutorial,tavfan/sw2015-tutorial,BlackHawkNL/sw2015-tutorial,BlackHawkNL/sw2015-tutorial,tavfan/sw2015-tutorial,RinkeHoekstra/semanticweb-web-application-tutorial,PietroFerretti/FinalProject,BakkerJesse/sw2015-tutorial,raviquast/sw2015-tutorial,mvr320/sw2015-tutorial,Martijn6/sw2015-tutorial,raviquast/sw2015-tutorial,lisadellarriva/sw2015-tutorial,PietroFerretti/FinalProject,callado/sw2015-tutorial,MarciavdPoel/sw2015-tutorial,PietroFerretti/sw-assignment4,Data2Semantics/sw2015-tutorial,Martijn6/sw2015-tutorial,RinkeHoekstra/sw2015-tutorial,Data2Semantics/sw2015-tutorial,idkashti/swAssingment4,BakkerJesse/sw2015-tutorial,RomeroSkarr/sw2015-tutorial,varunkumar88/sw2015-tutorial,BakkerJesse/sw2015-tutorial,acefoxy/sw2015-tutorial,MarciavdPoel/sw2015-tutorial,callado/sw2015-tutorial,mvr320/sw2015-tutorial,RinkeHoekstra/iwa-tutorial,lisadellarriva/sw2015-tutorial,varunkumar88/sw2015-tutorial,acefoxy/sw2015-tutorial,mvr320/sw2015-tutorial,RinkeHoekstra/sw2015-tutorial,lisadellarriva/sw2015-tutorial,PietroFerretti/FinalProject,RinkeHoekstra/iwa-tutorial,RinkeHoekstra/iwa-tutorial,RinkeHoekstra/sw2015-tutorial,RinkeHoekstra/semanticweb-web-application-tutorial,RinkeHoekstra/semanticweb-web-application-tutorial,idkashti/swAssingment4,varunkumar88/sw2015-tutorial,Data2Semantics/sw2015-tutorial,acefoxy/sw2015-tutorial,PietroFerretti/sw-assignment4,RomeroSkarr/sw2015-tutorial,RomeroSkarr/sw2015-tutorial,Martijn6/sw2015-tutorial