check version

IMP

@@ -122,7 +122,7 @@ def is_imp_installed(name, version):
     """
     try:
         imp_image = subprocess.Popen(['docker', 'images', name], stdout=subprocess.PIPE)
-        is_installed = subprocess.check_output(['grep', version], stdin=imp_image.stdout)
+        is_installed = subprocess.check_output(['grep', " %s " % version], stdin=imp_image.stdout)
     except subprocess.CalledProcessError:
         return False
     print("[x] Found IMP {n} {v}".format(n=name, v=version))