[Commotion-admin] [commotion-apps] fixed lua error when leaving hop count field empty (#2)

[danstaples]

You can merge this Pull Request by running:

  git pull https://github.com/opentechinstitute/commotion-apps hop-count-fix

Or you can view, comment on it, or merge it online at:

  https://github.com/opentechinstitute/commotion-apps/pull/2

-- Commit Summary --

  * fixed lua error when leaving hop count field empty

-- File Changes --

    M lua/luci/controller/commotion/apps_controller.lua (2)

-- Patch Links --

https://github.com/opentechinstitute/commotion-apps/pull/2.patch
https://github.com/opentechinstitute/commotion-apps/pull/2.diff

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