Add TypeScript linting (#827)

* add tslint, create tslint.json ruleset from .eslintrc

* remove leftover rules

* fix up meta files

tslint.json

@@ -0,0 +1,76 @@
+{
+  "extends": [
+    "tslint-eslint-rules"
+  ],
+  "rules": {
+    "ban": [true, ["alert"]],
+    "no-arg": true,
+    "no-conditional-assignment": true,
+    "no-console": false,
+    "no-constant-condition": true,
+    "no-control-regex": true,
+    "no-debugger": true,
+    "no-duplicate-case": true,
+    "no-empty": true,
+    "no-empty-character-class": true,
+    "no-eval": true,
+    "no-ex-assign": true,
+    "no-extra-boolean-cast": true,
+    "no-extra-semi": true,
+    "no-switch-case-fall-through": true,
+    "no-inner-declarations": [true, "functions"],
+    "no-invalid-regexp": true,
+    // this rule would cause problems with mocha test cases,
+    "no-invalid-this": false,
+    "no-irregular-whitespace": true,
+    "ter-no-irregular-whitespace": true,
+    "label-position": true,
+    "indent": [true, "spaces", 2],
+    "linebreak-style": [true, "unix"],
+    "no-multi-spaces": true,
+    "no-consecutive-blank-lines": [true, 2],
+    "no-unused-expression": true,
+    "no-construct": true,
+    "no-duplicate-variable": true,
+    "no-regex-spaces": true,
+    "no-shadowed-variable": true,
+    "ter-no-sparse-arrays": true,
+    "no-trailing-whitespace": true,
+    "no-string-throw": true,
+    "no-unexpected-multiline": true,
+    "no-unused-variable": [true, {"ignore-pattern": "^_"}],
+    "no-use-before-declare": true,
+    "no-var-keyword": true,
+    "no-magic-numbers": false,
+    "array-bracket-spacing": [true, "never"],
+    "ter-arrow-body-style": false,
+    "ter-arrow-parens": [true, "as-needed"],
+    "ter-arrow-spacing": true,
+    "block-spacing": true,
+    "brace-style": [true, "1tbs", {"allowSingleLine": true}],
+    "variable-name": false,
+    "trailing-comma": [true, {"multiline": "never", "singleline": "never"}],
+    "cyclomatic-complexity": [false, 11],
+    "curly": [true, "all"],
+    "switch-default": false,
+    "eofline": true,
+    "triple-equals": true,
+    "forin": false,
+    "handle-callback-err": true,
+    "ter-max-len": [true, 80],
+    "new-parens": true,
+    "object-curly-spacing": [true, "never"],
+    "object-literal-shorthand": false,
+    "one-variable-per-declaration": [true, "ignore-for-loop"],
+    "ter-prefer-arrow-callback": false,
+    "prefer-const": true,
+    "object-literal-key-quotes": false,
+    "quotemark": [true, "single"],
+    "radix": true,
+    "semicolon": [true, "never"],
+    "space-in-parens": [true, "never"],
+    "comment-format": [true, "check-space"],
+    "use-isnan": true,
+    "valid-typeof": true
+  }
+}