improvements on setup.py - check if intelmq is already installed
improvements on setup.py - check if intelmq is already installed


Former-commit-id: f3d50d973aeac58c410a0f44fa4d87ad3df8d5ff
certtools/intelmq,aaronkaplan/intelmq,pkug/intelmq,certtools/intelmq,certtools/intelmq,aaronkaplan/intelmq,robcza/intelmq,pkug/intelmq,robcza/intelmq,sch3m4/intelmq,robcza/intelmq,sch3m4/intelmq,pkug/intelmq,robcza/intelmq,sch3m4/intelmq,pkug/intelmq,aaronkaplan/intelmq,sch3m4/intelmq