add support for multiple scripts and script arguments. refs #76

test/scripts/a.py

@@ -1,5 +1,13 @@
+import argparse
+
+parser = argparse.ArgumentParser()
+parser.add_argument('--var')
 
 var = 0
+def __init__(ctx, argv):
+    global var
+    var = parser.parse_args(argv).var
+
 def here(ctx):
     global var
     var += 1

test/scripts/starterr.py

@@ -1,3 +1,3 @@
 
-def start(ctx):
+def start(ctx, argv):
     raise ValueError