Code cleanup (#120)

* Lots of code cleanup

* Cleanup parse-options tests
  - Rename objects for clarity and inline unneeded objects
  - Remove unneeded tests
  - Use Object.keys().length instead of a custom function
  - Use typeof === "object" instead of a custom function that checks the prototype tree as well, since we don't expect anything but an object literal.

* Remove old switchFallback code

* Remove polyfill for Function.prototype.bind

* Inline small functions

* Add more documentation and tests for options.currentUrlFullReload
  Closes #17

* Update package.json

tests/lib/send-request.js

@@ -20,9 +20,9 @@ tape("test xhr request", function(t) {
   t.test("- request is made, gets a result, and is cache-busted", function(t) {
     var requestCacheBust = sendRequest.bind({
       options: {
-        cacheBust: true,
-      },
-    });
+        cacheBust: true
+      }
+    })
     var r = requestCacheBust(url, {}, function(result) {
       t.equal(r.responseURL.indexOf("?"), url.length, "XHR URL is cache-busted when configured to be")
       try {
@@ -38,9 +38,9 @@ tape("test xhr request", function(t) {
   t.test("- request is not cache-busted when configured not to be", function(t) {
     var requestNoCacheBust = sendRequest.bind({
       options: {
-        cacheBust: false,
-      },
-    });
+        cacheBust: false
+      }
+    })
     var r = requestNoCacheBust(url, {}, function() {
       t.equal(r.responseURL, url, "XHR URL is left untouched")
       t.end()