setup.py: support setuptools development mode
setup.py: support setuptools development mode

Update issue 1484
Status: Done
Owner: pekka.klarck
Fixed by importing setuptools when `develop` option is used.

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