Requires with backtick strings (#136)

* Failing tests for requires with backtick strings

* Bump the detective dependency

This fixes the failing test for different quote styles

Author: TehShrike

package.json

@@ -12,7 +12,7 @@
     "cached-path-relative": "^1.0.0",
     "concat-stream": "~1.5.0",
     "defined": "^1.0.0",
-    "detective": "^4.0.0",
+    "detective": "^4.7.1",
     "duplexer2": "^0.1.2",
     "inherits": "^2.0.1",
     "parents": "^1.0.0",

test/files/quotes/bar.js

@@ -0,0 +1 @@
+module.exports = 'success';

test/files/quotes/baz.js

@@ -0,0 +1 @@
+module.exports = 'success';

test/files/quotes/foo.js

@@ -0,0 +1 @@
+module.exports = 'success';

test/files/quotes/main.js

@@ -0,0 +1,3 @@
+var foo = require('./foo');
+var bar = require("./bar");
+var baz = require(`./baz`);

test/quotes.js

@@ -0,0 +1,42 @@
+var parser = require('../');
+var test = require('tap').test;
+var fs = require('fs');
+var path = require('path');
+
+var files = {
+    main: path.join(__dirname, '/files/quotes/main.js'),
+    foo: path.join(__dirname, '/files/quotes/foo.js'),
+    bar: path.join(__dirname, '/files/quotes/bar.js'),
+    baz: path.join(__dirname, '/files/quotes/baz.js')
+};
+
+var sources = Object.keys(files).reduce(function (acc, file) {
+    acc[file] = fs.readFileSync(files[file], 'utf8');
+    return acc;
+}, {});
+
+test('different quote styles', function (t) {
+    t.plan(1);
+    var p = parser();
+    p.end(files.main);
+    var main = null
+
+    p.on('data', function (row) {
+        if (row.id === files.main) {
+            main = row
+        }
+    });
+    p.on('end', function () {
+        t.same(main, {
+            id: files.main,
+            file: files.main,
+            source: sources.main,
+            entry: true,
+            deps: {
+                './foo': files.foo,
+                './bar': files.bar,
+                './baz': files.baz
+            }
+        });
+    });
+});