fix netpyne version

Author: adrianq

utilities/install.py

@@ -46,7 +46,7 @@ def main(argv):
 clone('https://github.com/openworm/pygeppetto.git','pygeppetto','v0.4.1-M1')
 subprocess.call(['pip', 'install', '-e', '.'], cwd='./pygeppetto/')
 
-clone('https://github.com/Neurosim-lab/netpyne.git','netpyne','0.7.9')
+clone('https://github.com/Neurosim-lab/netpyne.git','netpyne','v0.7.9')
 subprocess.call(['pip', 'install', '-e', '.'], cwd='./netpyne/')
 
 clone('https://github.com/openworm/org.geppetto.frontend.jupyter.git','org.geppetto.frontend.jupyter','v0.4.1-M2','', True )