Use $contextpath whenever URLS are used

[Krinkle]

Yet another place where $contextpath is not supported in logic/addjob.php, Location-header doesn't prefix $contextpath

I suggest creating a function that returns the path, and not hardcode it anywhere.
That way, you can't forget $contextpath so that I'm redirected to a 404-error, also, it'll make it future proof.

Another one:

Missing $contextpath in logic/run.php on line 7:
header("Location: /run/$user/");

EDIT:
More in logic/wipejob.php:

Please add {$GLOBALS['contextpath']} (or create a function like suggested) for line 34 and line 37
header("Location: /user/" . $_SESSION['username'] . "/");

header("Location: /job/$job_id/");

[Krinkle]

And also in JavaScript (js/run.js)

encodeURIComponent(window.location.protocol + "//" + window.location.host + "?" + params + "&state=");

[Krinkle]

Sorry for the quadruple posting, I grepped for patterns, but variations show up.

Another issue alike in content/addjob.php

<form action="/" method="POST">

and content/jobstatus.php:

<form action="/" method="POST">

[jzaefferer]

Fixed by #66