add basic home, admin pages

- index no longer requires login, it's just a big fat login button
- home has stop, start, admin buttons
- admin doesn't do anything yet
- add jhapi javascript client for REST API

share/jupyter/static/js/jhapi.js

@@ -0,0 +1,89 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+define(['jquery', 'utils'], function ($, utils) {
+    "use strict";
+
+    var JHAPI = function (base_url) {
+        this.base_url = base_url;
+    };
+    
+    var default_options = {
+        type: 'GET',
+        headers: {'Content-Type': 'application/json'},
+        cache: false,
+        dataType : "json",
+        processData: false,
+        success: null,
+        error: utils.log_jax_error,
+    };
+    
+    var update = function (d1, d2) {
+        $.map(d2, function (i, key) {
+            d1[key] = d2[key];
+        });
+        return d1;
+    };
+    
+    var ajax_defaults = function (options) {
+        var d = {};
+        update(d, default_options);
+        update(d, options);
+        return d;
+    };
+    
+    JHAPI.prototype.api_request = function (path, options) {
+        options = options || {};
+        options = ajax_defaults(options || {});
+        var url = utils.url_path_join(
+            this.base_url,
+            'api',
+            utils.encode_uri_components(path)
+        );
+        $.ajax(url, options);
+    };
+    
+    JHAPI.prototype.start_server = function (user, options) {
+        options = options || {};
+        options.update({
+            type: 'POST',
+        });
+        this.api_request(
+            utils.url_path_join('users', user, 'server'),
+            options
+        );
+    };
+    
+    JHAPI.prototype.stop_server = function (user, options) {
+        options = update(options || {}, {
+            type: 'DELETE',
+        });
+        this.api_request(
+            utils.url_path_join('users', user, 'server'),
+            options
+        );
+    };
+    
+    JHAPI.prototype.list_users = function (options) {
+        this.api_request('users', options);
+    };
+    
+    JHAPI.prototype.get_user = function (user, options) {
+        this.api_request(
+            utils.url_path_join('users', user),
+            options
+        );
+    };
+    
+    JHAPI.prototype.delete_user = function (user, options) {
+        options = update(options || {}, {
+            type: 'DELETE',
+        });
+        this.api_request(
+            utils.url_path_join('users', user),
+            options
+        );
+    };
+    
+    return JHAPI;
+});