Compile scanjob

[gdetrez]

• Add a projectdirectory arg to compile page
• Add a link to compilation in the ScanningJobPanel
• Add a system test that creates a scanjob, post a scan, click the new "compile" link and checks the project path and that the images is detected.

[coveralls]

Coverage increased (+0.1%) to 47.942% when pulling f08dac4a538ce6c6b68ac82d675d7346cae6cece on gdetrez:compile-scanjob into 845e74662b80d1c804aa2330d4f74ed970417b2b on Scan-o-Matic:master.

[skymandr]

That's a pretty heft coverage decrease... :-/

[gdetrez]

Whoops. Should be fixed.