feat(deps): upgrade postcss-loader

Although postcss-loader's maintainers are now promoting using
`postcss-load-config`, we can still use the old style -- nest options.

Author: e-cloud

package.json

@@ -89,7 +89,7 @@
     "ora": "^0.4.0",
     "portfinder": "1.0.10",
     "postcss-discard-comments": "^2.0.4",
-    "postcss-loader": "^0.9.1",
+    "postcss-loader": "^1.2.1",
     "quick-temp": "0.1.6",
     "raw-loader": "^0.5.1",
     "readline2": "1.0.1",

packages/angular-cli/package.json

@@ -71,7 +71,7 @@
     "ora": "^0.4.0",
     "portfinder": "1.0.10",
     "postcss-discard-comments": "^2.0.4",
-    "postcss-loader": "^0.9.1",
+    "postcss-loader": "^1.2.1",
     "quick-temp": "0.1.6",
     "raw-loader": "^0.5.1",
     "readline2": "1.0.1",