[Commotion-admin] [luci-commotion-apps] r1: dispatcher errors when adding/editing applications (#52)

[areynold]

When adding or editing apps from admin page, occasionally get dispatcher errors along the lines of 
```
/usr/lib/lua/luci/dispatcher.lua:448: Failed to execute call dispatcher target for entry '/admin/commotion/apps/add_submit'.
The called action terminated with an exception:
...ib/lua/luci/controller/commotion/apps_controller.lua:507: attempt to concatenate field 'fingerprint' (a nil value)
stack traceback:
        [C]: in function 'assert'
        /usr/lib/lua/luci/dispatcher.lua:448: in function 'dispatch'
        /usr/lib/lua/luci/dispatcher.lua:195: in function </usr/lib/lua/luci/dispatcher.lua:194>
```

@elationfoundation was working on a fix this morning. seemed to be related to relative paths.

---
Reply to this email directly or view it on GitHub:
https://github.com/opentechinstitute/luci-commotion-apps/issues/52
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