Fix/client bugs

[vsoch]

This will fix two client bugs:

1. arguments aren't correctly passed with run.

I've pushed the container vanessa/scif:hw to test this fix, here is an example of arguments being passed correctly:

$ docker run -it vanessa/scif:hw run hello-world-custom THINGONE
[hello-world-custom] executing /bin/bash /scif/apps/hello-world-custom/scif/runscript THINGONE
Hello THINGONE

$ docker run -it vanessa/scif:hw run hello-world-custom THINGONE THINGTWO
[hello-world-custom] executing /bin/bash /scif/apps/hello-world-custom/scif/runscript THINGONE THINGTWO
Hello THINGONE THINGTWO

$ docker run -it vanessa/scif:hw run hello-world-custom THINGONE THINGTWO --omg
[hello-world-custom] executing /bin/bash /scif/apps/hello-world-custom/scif/runscript THINGONE THINGTWO --omg
Hello THINGONE THINGTWO --omg

2. The next issue is that exec was hitting the runscript (instead of executing the command). Here is the fixed example:

$ docker run vanessa/scif:hw exec hello-world-env echo "Meatballs"
[hello-world-env] executing /bin/echo Meatballs
Meatballs

In addition, I've updated the date in the headers.

This will close #54 #53

[vsoch]

Note: just changed so that if there is no runscript, it alerts the user and exits.

[bilke]

I have not reviewed the implementation but run and exec now work as expected, thanks a lot!!

[vsoch]

okay cool! I tested most bits so I'm good to merge. Please open another issue if you run into any more, and always glad to help :) I'll release this on pypi in a minute and post the link here.

[vsoch]

https://pypi.org/project/scif/0.0.77/