Various small fixes based on real-world usage

docs/source/plugin_development.rst

@@ -158,7 +158,7 @@ Accessing 3rd party libraries
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 Immediately inside the module shown above you can access 3rd party libraries (such
-moment, underscore and jQuery) via the ``converse.env`` map.
+moment and lodash) via the ``converse.env`` map.
 
 The code for it would look something like this:
 
@@ -172,8 +172,7 @@ The code for it would look something like this:
         $msg = converse.env.$msg,
         $pres = converse.env.$pres,
         $build = converse.env.$build,
-        b64_sha1 = converse.env.b64_sha1;
-        $ = converse.env.jQuery,
+        b64_sha1 = converse.env.b64_sha1,
         _ = converse.env._,
         moment = converse.env.moment;
 
@@ -362,8 +361,7 @@ generated by `generator-conversejs <https://github.com/jcbrand/generator-convers
             $msg = converse.env.$msg,
             $pres = converse.env.$pres,
             $build = converse.env.$build,
-            b64_sha1 = converse.env.b64_sha1;
-            $ = converse.env.jQuery,
+            b64_sha1 = converse.env.b64_sha1,
             _ = converse.env._,
             moment = converse.env.moment;
 
@@ -397,8 +395,7 @@ generated by `generator-conversejs <https://github.com/jcbrand/generator-convers
 
                 /* From the `_converse` object you can get any configuration
                  * options that the user might have passed in via
-                 * `converse.initialize`. These values are stored in the
-                 * "user_settings" attribute.
+                 * `converse.initialize`.
                  *
                  * You can also specify new configuration settings for this
                  * plugin, or override the default values of existing
@@ -415,11 +412,8 @@ generated by `generator-conversejs <https://github.com/jcbrand/generator-convers
                  *      converse.initialize({
                  *           "initialize_message": "My plugin has been initialized"
                  *      });
-                 *
-                 * And the configuration setting is then available via the
-                 * `user_settings` attribute:
                  */
-                alert(this._converse.user_settings.initialize_message);
+                alert(this._converse.initialize_message);
 
                 /* Besides `_converse.api.settings.update`, there is also a
                  * `_converse.api.promises.add` method, which allows you to