escape sys.executable when installing (fixes 234) and some cleanup
escape sys.executable when installing (fixes 234) and some cleanup

userzimmermann/robotframework,SivagnanamCiena/robotframework,xiaokeng/robotframework,kyle1986/robortframe,HelioGuilherme66/robotframework,fingeronthebutton/robotframework,suvarnaraju/robotframework,userzimmermann/robotframework,robotframework/robotframework,jorik041/robotframework,edbrannin/robotframework,nmrao/robotframework,kurtdawg24/robotframework,kurtdawg24/robotframework,ashishdeshpande/robotframework,un33k/robotframework,ChrisHirsch/robotframework,Colorfulstan/robotframework,alexandrul-ci/robotframework,kyle1986/robortframe,kyle1986/robortframe,moto-timo/robotframework,wojciechtanski/robotframework,Colorfulstan/robotframework,dkentw/robotframework,xiaokeng/robotframework,suvarnaraju/robotframework,JackNokia/robotframework,joongh/robotframework,jorik041/robotframework,stasiek/robotframework,jorik041/robotframework,JackNokia/robotframework,moto-timo/robotframework,yonglehou/robotframework,yonglehou/robotframework,dkentw/robotframework,fingeronthebutton/robotframework,Colorfulstan/robotframework,eric-stanley/robotframework,alexandrul-ci/robotframework,dkentw/robotframework,yahman72/robotframework,edbrannin/robotframework,wojciechtanski/robotframework,moto-timo/robotframework,moto-timo/robotframework,jaloren/robotframework,robotframework/robotframework,un33k/robotframework,alexandrul-ci/robotframework,stasiek/robotframework,yahman72/robotframework,fingeronthebutton/robotframework,wojciechtanski/robotframework,stasiek/robotframework,rwarren14/robotframework,xiaokeng/robotframework,SivagnanamCiena/robotframework,kyle1986/robortframe,rwarren14/robotframework,yahman72/robotframework,wojciechtanski/robotframework,edbrannin/robotframework,yonglehou/robotframework,robotframework/robotframework,suvarnaraju/robotframework,Colorfulstan/robotframework,userzimmermann/robotframework,yahman72/robotframework,joongh/robotframework,rwarren14/robotframework,SivagnanamCiena/robotframework,alexandrul-ci/robotframework,HelioGuilherme66/robotframework,stasiek/robotframework,joongh/robotframework,fingeronthebutton/robotframework,moto-timo/robotframework,Colorfulstan/robotframework,dkentw/robotframework,ChrisHirsch/robotframework,jorik041/robotframework,synsun/robotframework,jaloren/robotframework,SivagnanamCiena/robotframework,synsun/robotframework,alexandrul-ci/robotframework,jaloren/robotframework,snyderr/robotframework,ashishdeshpande/robotframework,kurtdawg24/robotframework,eric-stanley/robotframework,eric-stanley/robotframework,nmrao/robotframework,edbrannin/robotframework,eric-stanley/robotframework,rwarren14/robotframework,synsun/robotframework,synsun/robotframework,un33k/robotframework,nmrao/robotframework,yonglehou/robotframework,un33k/robotframework,xiaokeng/robotframework,kurtdawg24/robotframework,xiaokeng/robotframework,nmrao/robotframework,jorik041/robotframework,stasiek/robotframework,snyderr/robotframework,ChrisHirsch/robotframework,jaloren/robotframework,snyderr/robotframework,userzimmermann/robotframework,kyle1986/robortframe,ashishdeshpande/robotframework,snyderr/robotframework,joongh/robotframework,snyderr/robotframework,ashishdeshpande/robotframework,JackNokia/robotframework,yonglehou/robotframework,jaloren/robotframework,fingeronthebutton/robotframework,rwarren14/robotframework,suvarnaraju/robotframework,SivagnanamCiena/robotframework,JackNokia/robotframework,dkentw/robotframework,ashishdeshpande/robotframework,ChrisHirsch/robotframework,JackNokia/robotframework,yahman72/robotframework,wojciechtanski/robotframework,userzimmermann/robotframework,joongh/robotframework,HelioGuilherme66/robotframework,ChrisHirsch/robotframework,synsun/robotframework,kurtdawg24/robotframework,edbrannin/robotframework,suvarnaraju/robotframework,un33k/robotframework,nmrao/robotframework