Fix lint config path, resolve warning

Author: ljowen

gulpfile.js

@@ -189,7 +189,7 @@ gulp.task("lint", function (done) {
 
   runExternalModule("eslint/bin/eslint.js", [
     "-c",
-    path.join(getPackageRoot("terriajs"), ".eslintrc"),
+    path.join(getPackageRoot("terriajs"), ".eslintrc.js"),
     "--ignore-pattern",
     "lib/ThirdParty",
     "--max-warnings",

lib/ViewModels/PreviewLinkViewModel.js

@@ -15,7 +15,7 @@ function PreviewLinkViewModel(options) {
   knockout.track(this, ["isShown"]);
 }
 
-PreviewLinkViewModel.prototype.hide = function (container) {
+PreviewLinkViewModel.prototype.hide = function (_container) {
   this.isShown = false;
 };