[Commotion-admin] [commotion-lua-helpers] fix encoding functions return values (#1)

[Dan Staples]

This should fix the problem of adding URLs into the add application form.

To test, create a gateway node and add applications with the following URLs (all should be accepted):
* 127.0.0.1
* http://commotionwireless.net/test
* https://127.0.0.1/testing
* https://127.0.0.1:22/testing/123.html?foo=bar&baz=
You can merge this Pull Request by running:

  git pull https://github.com/opentechinstitute/commotion-lua-helpers encoding-returns

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

  https://github.com/opentechinstitute/commotion-lua-helpers/pull/1

-- Commit Summary --

  * fix encoding functions return values

-- File Changes --

    M modules/encode.lua (10)

-- Patch Links --

https://github.com/opentechinstitute/commotion-lua-helpers/pull/1.patch
https://github.com/opentechinstitute/commotion-lua-helpers/pull/1.diff
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