Bump ember-content-placeholders from master#2018-07-19 to 1.0.0

Bumps [ember-content-placeholders](https://github.com/michalsnik/ember-content-placeholders) from master#2018-07-19 to 1.0.0. This release includes the previously tagged commit.
- [Release notes](https://github.com/michalsnik/ember-content-placeholders/releases)
- [Commits](michalsnik/ember-content-placeholders@640cef7...v1.0.0)

---
updated-dependencies:
- dependency-name: ember-content-placeholders
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <[email protected]>

package.json

@@ -155,7 +155,7 @@
     "ember-concurrency": "^2.0.3",
     "ember-concurrency-async": "^1.0.0",
     "ember-concurrency-ts": "^0.2.2",
-    "ember-content-placeholders": "https://github.com/cos-forks/ember-content-placeholders#master#2018-07-19",
+    "ember-content-placeholders": "^1.0.0",
     "ember-cookies": "^0.4.0",
     "ember-cp-validations": "https://github.com/GavinJoyce/ember-cp-validations#gj/ember-3.13",
     "ember-css-modules": "^1.0.3",

yarn.lock

@@ -8981,9 +8981,10 @@ ember-concurrency-ts@^0.2.2:
     ember-compatibility-helpers "^1.2.0"
     ember-destroyable-polyfill "^2.0.2"
 
-"ember-content-placeholders@https://github.com/cos-forks/ember-content-placeholders#master#2018-07-19":
+ember-content-placeholders@^1.0.0:
   version "1.0.0"
-  resolved "https://github.com/cos-forks/ember-content-placeholders#640cef7dfb89956c5de1333bf5272ea8edd18211"
+  resolved "https://registry.yarnpkg.com/ember-content-placeholders/-/ember-content-placeholders-1.0.0.tgz#21c3ce60b1d7b4c9e8d80303124d3300cca03bc7"
+  integrity sha512-AbCTrADdxvbgtYSJzym+FsyJF3a8HnfIIKeafI1+LYBaT7+OO9ccd3y7PnqEmXqzvKQzWRd69Dt4cfCkZJRpfQ==
   dependencies:
     ember-cli-babel "^6.6.0"
     ember-cli-htmlbars "^2.0.1"