Initial commit with jest enabling

Removed dependency on pico-check and existing tests.
Added jest as dev dependency, introduced minimal configuration for it.
Added a very first couple of tests for our markdown parser/renderer.

tests/basic.test.js

@@ -1,7 +0,0 @@
-const test = require('pico-check');
-
-test('Just setting up a spot for future tests', (t)=>{
-	t.pass();
-});
-
-module.exports = test;

tests/markdown.test.js

@@ -0,0 +1,13 @@
+const Markdown = require('naturalcrit/markdown.js');
+
+test('Escapes <script> tag', function() {
+  const source = '<script></script>';
+  const rendered = Markdown.render(source);
+  expect(rendered).toMatch('&lt;script&gt;&lt;/script&gt;');
+});
+
+test('Processes the markdown within an HTML block if its just a class wrapper', function() {
+  const source = '<div>*Bold text*</div>';
+  const rendered = Markdown.render(source);
+  expect(rendered).toBe('<div> <p><em>Bold text</em></p>\n </div>');
+});

tests/test.init.js

@@ -1 +0,0 @@
-//Set up configs and DB connectiosna nd what not in here