Allow st2client setup to be run from other dir
Allow st2client setup to be run from other dir

Get realpath to setup.py and then change to the directory where setup.py is located.

pinterb/st2,pixelrebel/st2,nzlosh/st2,punalpatel/st2,lakshmi-kannan/st2,Plexxi/st2,Plexxi/st2,tonybaloney/st2,Itxaka/st2,punalpatel/st2,peak6/st2,armab/st2,pixelrebel/st2,lakshmi-kannan/st2,nzlosh/st2,tonybaloney/st2,grengojbo/st2,StackStorm/st2,pinterb/st2,tonybaloney/st2,Itxaka/st2,emedvedev/st2,lakshmi-kannan/st2,armab/st2,armab/st2,alfasin/st2,Plexxi/st2,nzlosh/st2,emedvedev/st2,peak6/st2,StackStorm/st2,pixelrebel/st2,StackStorm/st2,alfasin/st2,jtopjian/st2,dennybaa/st2,peak6/st2,grengojbo/st2,punalpatel/st2,dennybaa/st2,Plexxi/st2,pinterb/st2,jtopjian/st2,emedvedev/st2,grengojbo/st2,dennybaa/st2,nzlosh/st2,Itxaka/st2,StackStorm/st2,alfasin/st2,jtopjian/st2