Remove resolve-url loader

Clearly I was doing something incorrect, as npm was telling me that
window wasn't defined at one point. Ha.

config/webpack.config.dev.js

@@ -24,7 +24,7 @@ const plugins = [
 const sassLoaders = [
   'style-loader',
   'css-loader?sourceMap',
-  'resolve-url',
+  'postcss-loader',
   'sass-loader?outputStyle=expanded'
 ];
 
@@ -64,7 +64,7 @@ module.exports = {
       },
       {
         test: /\.css$/,
-        loader: 'style-loader!css-loader!resolve-url!'
+        loader: 'style-loader!css-loader!postcss-loader'
       },
       {
         test: /\.woff(\?v=\d+\.\d+\.\d+)?$/,
@@ -94,6 +94,11 @@ module.exports = {
     ]
   },
   plugins: plugins,
+  postcss: function () {
+    return [autoprefixer({
+      browsers: ['last 2 versions']
+    })];
+  },
   sassLoader: {
     indentedSyntax: true
   },

config/webpack.config.prod.js

@@ -40,10 +40,9 @@ const plugins = [
 ];
 
 const sassLoaders = [
-  'style-loader',
   'css-loader?sourceMap',
-  'resolve-url',
-  'sass-loader?outputStyle=expanded'
+  'postcss-loader',
+  'sass-loader?outputStyle=compressed'
 ];
 
 module.exports = {
@@ -82,7 +81,7 @@ module.exports = {
       {
         test: /\.css$/,
         include: PATHS.styles,
-        loader: ExtractTextPlugin.extract('style-loader', 'css-loader!resolve-url')
+        loader: ExtractTextPlugin.extract('style-loader', 'css-loader!postcss-loader')
       },
       {
         test: /\.woff(\?v=\d+\.\d+\.\d+)?$/,

package.json

@@ -83,7 +83,6 @@
     "react-redux": "4.4.5",
     "react-router": "2.3.0",
     "react-router-bootstrap": "0.23.0",
-    "redux": "3.5.2",
-    "resolve-url-loader": "1.6.0"
+    "redux": "3.5.2"
   }
 }