Make plugin fully unicode compatible

@asciidisco is already working on this.

Since Jan 22, 2018.

*I'm submitting a ...*
- [ x] bug report
- [ ] feature request
- [ ] support request

## General infomration
i made the installation as the wiki step by step and the netflix after login does not work
### Prerequisites

* [ x] Are you running the latest version?
yes 1214, 14-Dec-2017

### Description
netflix start , processing with credentials but doesn't work after that , i cant see any show or movie to select to watch

[Description of the bug or feature]

### Steps to Reproduce

1. [First Step]
fresh install libreelec
2. [Second Step]
update to kodi 18
3. [and so on...]
installation zip from this repo

**Expected behavior:** [What you expected to happen]

**Actual behavior:** [What actually happened]

## Context (Environment)

### Installation

* [x ] I installed the plugin via zip from the Releases page
* [ ] I´m using the Netflix Repo
* [ ] I´m using a different source (Please tell which)

### Operating System

* [ ] Linux (x86/x64)
* [ ] OSX (x86/x64)
* [ ] Windows (x86/x64)
* [x ] Linux (ARM)
* [ ] Android

#### Additional informatin on the environment

i use libreelec on rpi3

## Debug log

http://paste.ubuntu.com/26194783/

http://paste.ubuntu.com/26195401/

## Other information

[e.g. detailed explanation, related issues, suggestions how to fix, links for us to have context, etc.]

### Screenshots

[Please add a screenshot if that helps understanding your problem]

[You can erase any parts of this template not applicable to your Issue.]