Switch over to eslint from tslint (#370)

* Adds eslint to replace tslint.
* Uses recommended typescript rules.
* Autofixable issues have been fixed, and other issues are ignored via comments.
* Eslint runs separately to gulp, since I think we are moving away from gulp long term, and this is a cleaner solution even if we don't.
* Husky added so that files are linted pre-commit.
* Update travis to lint pre build.

.eslintignore

@@ -0,0 +1,6 @@
+**/dist/*
+**/build/*
+**/gulpfile.js
+
+# Todo: remove and fix at some stage
+examples/* 

.eslintrc.json

@@ -0,0 +1,24 @@
+{
+    "parser": "@typescript-eslint/parser",
+    "plugins": [
+      "@typescript-eslint"
+    ],
+    "extends": [
+      "eslint:recommended",
+      "plugin:@typescript-eslint/recommended"
+    ],
+    "rules": {
+      "@typescript-eslint/no-inferrable-types": ["error", { "ignoreProperties": true, "ignoreParameters": true}],
+      "no-console": "error"
+    },
+    "overrides": [
+      {
+        "files": ["**/*.spec.ts"],
+        "rules": {
+          "@typescript-eslint/no-empty-function": "off",
+          "no-console": "warn"
+        }
+      }
+    ]
+
+}

.gulp/gulpConfig.js

@@ -14,7 +14,6 @@ module.exports = {
             threshold: 80
         }
     },
-    tslint: '../../tslint.json',
     documentation: {
         src: ['packages/**/src/**/*.ts', '!**/*.d.ts' , '!**/node_modules/**/*'],
         out: 'docs/'

.gulp/tasks/stage.js

@@ -6,7 +6,7 @@ var sourcemaps = require('gulp-sourcemaps'),
 
 module.exports = function (gulp, config) {
     return function () {
-        var tsProject = gulpts.createProject('./tsconfig-staging.json');
+        var tsProject = gulpts.createProject('./tsconfig.staging.json');
 
         var tsResult = tsProject.src()
             .pipe(sourcemaps.init())

.travis.yml

@@ -10,6 +10,7 @@ matrix:
 
 script:
   - npm run bootstrap
+  - npm run lint
   - npm run build
   - npm test
   - npm run docs

.vscode/settings.json

@@ -1,16 +1,12 @@
 {
     "json.schemas": [
-        {
-            "fileMatch": [ "tslint.json" ],
-            "url": "http://json.schemastore.org/tslint"
-        },
         {
             "fileMatch": [ "app.json" ],
-            "url": "http://json.schemastore.org/openfin"
+            "url": "https://json.schemastore.org/openfin"
         },
         {
-            "fileMatch": [ "tsconfig-staging.json" ],
-            "url": "http://json.schemastore.org/tsconfig"
+            "fileMatch": [ "tsconfig.staging.json" ],
+            "url": "https://json.schemastore.org/tsconfig"
         }
     ]
 }

.vscode/tasks.json

@@ -16,7 +16,7 @@
             "problemMatcher": [
                 "$tsc",
                 {
-                    "owner": "tslint",
+                    "owner": "eslint",
                     "pattern": {
                         "regexp": "^(.+):\\s+\\(.+\\)\\s(\\S+)\\[(\\d+)(.{2})(\\d+)\\]:\\s+(.+)$",
                         "severity": 0,