Update all dependencies and fix various issues

.travis.yml

@@ -6,7 +6,6 @@ cache:
   directories:
   - node_modules
 before_install:
-  - npm i -g npm@5.2.0
   - sudo dpkg --add-architecture i386
   - sudo apt-get -qq update
   - sudo apt-get install wine1.6

gulpfile.js

@@ -1,10 +1,11 @@
 "use strict";
 
 const gulp = require("gulp");
-const tasks = [];
 
-// Jade
-const jade = require("gulp-jade");
+// Pug
+const pugTasks = [];
+
+const pug = require("gulp-pug");
 const rename = require("gulp-rename");
 const fs = require("fs");
 
@@ -14,41 +15,34 @@ languageCodes.push("none");
 
 for (const languageCode of languageCodes) {
   const locale = i18n.loadLocale(languageCode);
-
-  gulp.task(`jade-index-${languageCode}`, () => {
-    const result = gulp.src("./src/renderer/index.jade").pipe(jade({ locals: { t: i18n.makeT(locale) } }));
-    if (languageCode !== "en") result.pipe(rename({ extname: `.${languageCode}.html` }));
+  gulp.task(`pug-${languageCode}`, () => {
+    let result = gulp.src("./src/renderer/index.pug").pipe(pug({ locals: { t: i18n.makeT(locale) } }));
+    if (languageCode !== "en") result = result.pipe(rename({ extname: `.${languageCode}.html` }));
     return result.pipe(gulp.dest("public/renderer"));
   });
-
-  tasks.push(`jade-index-${languageCode}`);
+  pugTasks.push(`pug-${languageCode}`);
 }
 
 // Stylus
 const stylus = require("gulp-stylus");
-
-gulp.task("stylus-index", () => gulp.src("./src/renderer/index.styl").pipe(stylus({ compress: true })).pipe(gulp.dest("public/renderer")));
-tasks.push("stylus-index");
+gulp.task("stylus", () => gulp.src("./src/renderer/index.styl").pipe(stylus({ compress: true })).pipe(gulp.dest("public/renderer")));
 
 // TypeScript
 const ts = require("gulp-typescript");
-const tslint = require("gulp-tslint");
-
-// Node
 const tsProject = ts.createProject("./src/tsconfig.json");
+const tslint = require("gulp-tslint");
 
 gulp.task("typescript", () => {
   let failed = false;
   const tsResult = tsProject.src()
-    .pipe(tslint())
-    .pipe(tslint.report("prose", { emitError: false }))
+    .pipe(tslint({ formatter: "prose" }))
+    .pipe(tslint.report({ emitError: true }))
     .on("error", (err) => { throw err; })
     .pipe(tsProject())
     .on("error", () => { failed = true; })
     .on("end", () => { if (failed) throw new Error("There were TypeScript errors."); });
   return tsResult.js.pipe(gulp.dest("./public"));
 });
-tasks.push("typescript");
 
 // All
-gulp.task("default", tasks);
+gulp.task("default", gulp.parallel(gulp.parallel(pugTasks), "stylus", "typescript"));