Redesigned moudule system

* Top level private APIs (e.g. jasmine.private.whatever) are no longer
  exposed
* jasmineRequire is no longer exposed
* core is self-booting
* Globals are automatically created in browsers. (They can subsequently
  be removed by user code if desired.)
* Globals are *not* automatically created in Node. An installGlobals
  function is exported instead. The jasmine package calls installGlobals
  unless configured not to do so.
* In Node, the same instance is returned each time jasmine-core is
  imported. A reset function is exported. It effectively resets all state
  by discarding the env and creating a new one. This allows mulitple
  sequential runs within the same process to be independent of each
  other, but does not allow multiple concurrent runs. (That probably never
  worked anyway.)

Fixes #2094

src/boot/boot.js

@@ -0,0 +1,27 @@
+'use strict';
+
+(function() {
+  const env = jasmine.getEnv();
+  const urls = new jasmine.HtmlReporterV2Urls();
+
+  /**
+   * Configures Jasmine based on the current set of query parameters. This
+   * supports all parameters set by the HTML reporter as well as
+   * spec=partialPath, which filters out specs whose paths don't contain the
+   * parameter.
+   */
+  env.configure(urls.configFromCurrentUrl());
+
+  const currentWindowOnload = window.onload;
+  window.onload = function() {
+    if (currentWindowOnload) {
+      currentWindowOnload();
+    }
+
+    // The HTML reporter needs to be set up here so it can access the DOM. Other
+    // reporters can be added at any time before env.execute() is called.
+    const htmlReporter = new jasmine.HtmlReporterV2({ env, urls });
+    env.addReporter(htmlReporter);
+    env.execute();
+  };
+})();