Rename esphomeyaml to esphome (#426)

* Rename

* Update

* Add migration

* Fix

* Fix dashboard

* Change test

* Fixes

* Code cleanup

* Fix import order

* Update

* Automate docker builds

* Shellcheck

docker/hooks/pre_build

@@ -0,0 +1,18 @@
+#!/usr/bin/env bash
+
+# the architecture to build
+declare BUILD_ARCH
+
+echo "BUILD_ARCH: ${BUILD_ARCH}"
+
+if [[ ${BUILD_ARCH} = "amd64" ]]; then
+    echo "No qemu required..."
+    exit 0
+fi
+if [[ ${BUILD_ARCH} = "i386" ]]; then
+    echo "No qemu required..."
+    exit 0
+fi
+
+echo "Installing qemu..."
+docker run --rm --privileged multiarch/qemu-user-static:register --reset