[Huge] Util Refactor, Dashboard Improvements, Hass.io Auth API, Better Validation Errors, Conditions, Custom Platforms, Substitutions (#234)

* Implement custom sensor platform

* Update

* Ethernet

* Lint

* Fix

* Login page

* Rename cookie secret

* Update manifest

* Update cookie check logic

* Favicon

* Fix

* Favicon manifest

* Fix

* Fix

* Fix

* Use hostname

* Message

* Temporary commit for screenshot

* Automatic board selection

* Undo temporary commit

* Update esphomeyaml-edge

* In-dashboard editing and hosting files locally

* Update esphomeyaml-edge

* Better ANSI color escaping

* Message

* Lint

* Download Efficiency

* Fix gitlab

* Fix

* Rename extra_libraries to libraries

* Add example

* Update README.md

* Update README.md

* Update README.md

* HassIO -> Hass.io

* Updates

* Add update available notice

* Update

* Fix substitutions

* Better error message

* Re-do dashboard ANSI colors

* Only include FastLED if user says so

* Autoscroll logs

* Remove old checks

* Use safer RedirectText

* Improvements

* Fix

* Use enviornment variable

* Use http://hassio/host/info

* Fix conditions

* Update platformio versions

* Revert "Use enviornment variable"

This reverts commit 7f038eb5d2.

* Fix

* README update

* Temp

* Better invalid config messages

* Platformio debug

* Improve error messages

* Debug

* Remove debug

* Multi Conf

* Update

* Better paths

* Remove unused

* Fixes

* Lint

* lib_ignore

* Try fix platformio colors

* Fix dashboard scrolling

* Revert

* Lint

* Revert

esphomeyaml-edge/rootfs/etc/cont-init.d/10-requirements.sh

@@ -0,0 +1,35 @@
+#!/usr/bin/with-contenv bash
+# ==============================================================================
+# Community Hass.io Add-ons: esphomeyaml
+# This files check if all user configuration requirements are met
+# ==============================================================================
+# shellcheck disable=SC1091
+source /usr/lib/hassio-addons/base.sh
+
+# Check SSL requirements, if enabled
+if hass.config.true 'ssl'; then
+    if ! hass.config.has_value 'certfile'; then
+        hass.die 'SSL is enabled, but no certfile was specified.'
+    fi
+
+    if ! hass.config.has_value 'keyfile'; then
+        hass.die 'SSL is enabled, but no keyfile was specified'
+    fi
+
+    if ! hass.file_exists "/ssl/$(hass.config.get 'certfile')"; then
+        if ! hass.file_exists "/ssl/$(hass.config.get 'keyfile')"; then
+            # Both files are missing, let's print a friendlier error message
+            text = "You enabled encrypted connections using the \"ssl\": true option.
+            However, the SSL files \"$(hass.config.get 'certfile')\" and \"$(hass.config.get 'keyfile')\"
+            were not found. If you're using Hass.io on your local network and don't want
+            to encrypt connections to the esphomeyaml dashboard, you can manually disable
+            SSL by setting \"ssl\" to false."
+            hass.die "${text}"
+        fi
+        hass.die 'The configured certfile is not found'
+    fi
+
+    if ! hass.file_exists "/ssl/$(hass.config.get 'keyfile')"; then
+        hass.die 'The configured keyfile is not found'
+    fi
+fi