## Description:
Escape ssid and psk
**Related issue (if applicable):** fixes <link to issue>
https://github.com/esphome/issues/issues/81
**Pull request in [esphome-docs](https://github.com/esphome/esphome-docs) with documentation (if applicable):** esphome/esphome-docs#<esphome-docs PR number goes here>
**Pull request in [esphome-core](https://github.com/esphome/esphome-core) with C++ framework changes (if applicable):** esphome/esphome-core#<esphome-core PR number goes here>
## Checklist:
- [X] The code change is tested and works locally.
- [n/a] Tests have been added to verify that the new code works (under `tests/` folder).
If user exposed functionality or configuration variables are added/changed:
- [n/a] Documentation added/updated in [esphomedocs](https://github.com/OttoWinter/esphomedocs).
Co-authored-by: Otto Winter <otto@otto-winter.com>
