Refactoring typescript client

* Moved response handlers into the DefaultRESTClient.ts
* Made both response handlers dynamically handle json bodies (Always parses bodies specified as json)
* Imported the correct Response type (was implicitly using the one present in the dom typescript domain)
* Added a test to prove that the new response handling works properly (Login with a user that doesn't exist) (See #8)
* Swapped the order of the tests to use nodejs tests first (so that they are more obvious but also because they are WAY easier to debug)
* Upgraded the deps (attempting to make intellij cooperate with the tests but also they are just dev time dependencies so I don't expect any ripples)

Author: tyduptyler13

karma.conf.js

@@ -31,7 +31,7 @@ module.exports = function(config) {
 
     // list of files / patterns to load in the browser (hosted files)
     files: [
-      'dist/fusionauth-typescript-client-test.js'
+      'dist/fusionauth-typescript-client-test.min.js'
     ],
 
     // list of files to exclude
@@ -42,13 +42,12 @@ module.exports = function(config) {
     preprocessors: {},
 
     plugins: [
-        mocha,
-        chai,
-        mochaReporter,
-        chrome,
+      mocha,
+      chai,
+      mochaReporter,
+      chrome,
     ],
 
-
     // test results reporter to use
     // possible values: 'dots', 'progress'
     // available reporters: https://npmjs.org/browse/keyword/karma-reporter
@@ -57,24 +56,19 @@ module.exports = function(config) {
     // web server port
     port: 9876,
 
-
     // enable / disable colors in the output (reporters and logs)
     colors: true,
 
-
     // level of logging
     // possible values: config.LOG_DISABLE || config.LOG_ERROR || config.LOG_WARN || config.LOG_INFO || config.LOG_DEBUG
     logLevel: config.LOG_INFO,
 
-
     // enable / disable watching file and executing tests whenever any file changes
     autoWatch: false,
 
-
     // start these browsers
     // available browser launchers: https://npmjs.org/browse/keyword/karma-launcher
-    browsers: ['Chrome'],
-
+    browsers: ['ChromiumHeadless'],
 
     // Continuous Integration mode
     // if true, Karma captures browsers, runs the tests and exits