[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/components/pn532.py

@@ -1,21 +1,23 @@
 import voluptuous as vol
 
-import esphomeyaml.config_validation as cv
-from esphomeyaml import pins, automation
+from esphomeyaml import automation, pins
 from esphomeyaml.components import binary_sensor, spi
 from esphomeyaml.components.spi import SPIComponent
-from esphomeyaml.const import CONF_CS_PIN, CONF_ID, CONF_SPI_ID, CONF_UPDATE_INTERVAL, \
-    CONF_ON_TAG, CONF_TRIGGER_ID
-from esphomeyaml.helpers import App, Pvariable, get_variable, gpio_output_pin_expression, \
-    std_string, setup_component, PollingComponent, Trigger
+import esphomeyaml.config_validation as cv
+from esphomeyaml.const import CONF_CS_PIN, CONF_ID, CONF_ON_TAG, CONF_SPI_ID, CONF_TRIGGER_ID, \
+    CONF_UPDATE_INTERVAL
+from esphomeyaml.cpp_generator import Pvariable, get_variable
+from esphomeyaml.cpp_helpers import gpio_output_pin_expression, setup_component
+from esphomeyaml.cpp_types import App, PollingComponent, Trigger, std_string
 
 DEPENDENCIES = ['spi']
+MULTI_CONF = True
 
 PN532Component = binary_sensor.binary_sensor_ns.class_('PN532Component', PollingComponent,
                                                        spi.SPIDevice)
 PN532Trigger = binary_sensor.binary_sensor_ns.class_('PN532Trigger', Trigger.template(std_string))
 
-CONFIG_SCHEMA = vol.All(cv.ensure_list, [vol.Schema({
+CONFIG_SCHEMA = vol.Schema({
     cv.GenerateID(): cv.declare_variable_id(PN532Component),
     cv.GenerateID(CONF_SPI_ID): cv.use_variable_id(SPIComponent),
     vol.Required(CONF_CS_PIN): pins.gpio_output_pin_schema,
@@ -23,23 +25,22 @@ CONFIG_SCHEMA = vol.All(cv.ensure_list, [vol.Schema({
     vol.Optional(CONF_ON_TAG): automation.validate_automation({
         cv.GenerateID(CONF_TRIGGER_ID): cv.declare_variable_id(PN532Trigger),
     }),
-}).extend(cv.COMPONENT_SCHEMA.schema)])
+}).extend(cv.COMPONENT_SCHEMA.schema)
 
 
 def to_code(config):
-    for conf in config:
-        for spi_ in get_variable(conf[CONF_SPI_ID]):
-            yield
-        for cs in gpio_output_pin_expression(conf[CONF_CS_PIN]):
-            yield
-        rhs = App.make_pn532_component(spi_, cs, conf.get(CONF_UPDATE_INTERVAL))
-        pn532 = Pvariable(conf[CONF_ID], rhs)
+    for spi_ in get_variable(config[CONF_SPI_ID]):
+        yield
+    for cs in gpio_output_pin_expression(config[CONF_CS_PIN]):
+        yield
+    rhs = App.make_pn532_component(spi_, cs, config.get(CONF_UPDATE_INTERVAL))
+    pn532 = Pvariable(config[CONF_ID], rhs)
 
-        for conf_ in conf.get(CONF_ON_TAG, []):
-            trigger = Pvariable(conf_[CONF_TRIGGER_ID], pn532.make_trigger())
-            automation.build_automation(trigger, std_string, conf_)
+    for conf_ in config.get(CONF_ON_TAG, []):
+        trigger = Pvariable(conf_[CONF_TRIGGER_ID], pn532.make_trigger())
+        automation.build_automation(trigger, std_string, conf_)
 
-        setup_component(pn532, conf)
+    setup_component(pn532, config)
 
 
 BUILD_FLAGS = '-DUSE_PN532'