Fix Travis builds

Author: GitSquared

.travis.yml

@@ -20,7 +20,7 @@ script:
     -v ~/.cache/electron:/root/.cache/electron \
     -v ~/.cache/electron-builder:/root/.cache/electron-builder \
     electronuserland/builder \
-    /bin/bash -c "npm install -g greenkeeper-lockfile@1 && npm run install-linux && greenkeeper-lockfile-update && npm run build && greenkeeper-lockfile-upload"
+    /bin/bash -c "npm install -g greenkeeper-lockfile@1 && npm install && greenkeeper-lockfile-update && npm run build && greenkeeper-lockfile-upload"
 
 before_cache:
   - rm -rf $HOME/.cache/electron-builder/wine

prebuild-minify.js

@@ -44,15 +44,15 @@ const recursiveMinify = (dirPath) => {
                             console.log(filePath+" -  ❌");
                             console.log("");
                             console.log("");
-                            throw err;
+                            throw minified.error;
                         }
                     case "css":
                         let output = new CleanCSS({level:2}).minify(fs.readFileSync(filePath, {encoding:"utf-8"}));
                         if (output.errors.length >= 1) {
                             console.log(filePath+" -  ❌");
                             console.log("");
                             console.log("");
-                            throw err;
+                            throw output.errors;
                         } else {
                             writeMinified(filePath, output.styles);
                             break;