Finished cookie and session section.

docs/guide/README.md

@@ -52,7 +52,7 @@ Handling Requests
 * [Routing](runtime-routing.md)
 * [Requests](runtime-requests.md)
 * [Responses](runtime-responses.md)
-* **TBD** [Sessions and Cookies](runtime-sessions-cookies.md)
+* [Sessions and Cookies](runtime-sessions-cookies.md)
 * [URL Parsing and Generation](runtime-url-handling.md)
 * [Handling Errors](runtime-handling-errors.md)
 * [Logging](runtime-logging.md)

docs/guide/runtime-requests.md

@@ -3,8 +3,8 @@ Requests
 
 Requests made to an application are represented in terms of [[yii\web\Request]] objects which provide information
 such as request parameters, HTTP headers, cookies, etc. For a given request, you can get access to the corresponding
-request object via the `request` [application component](structure-application-components.md). In this section, 
-we will describe how you can make use of this component in your applications.
+request object via the `request` [application component](structure-application-components.md) which is an instance
+of [[yii\web\Request]], by default. In this section, we will describe how you can make use of this component in your applications.
 
 
 ## Request Parameters <a name="request-parameters"></a>

docs/guide/runtime-responses.md

@@ -5,8 +5,9 @@ When an application finishes handling a [request](runtime-requests.md), it gener
 and sends it to the end user. The response object contains information such as the HTTP status code, HTTP headers and body.
 The ultimate goal of Web application development is essentially to build such response objects upon various requests.
 
-In most cases you should mainly deal with the `response` [application component](structure-application-components.md).
-However, Yii also allows you to create your own response objects and send them to end users.
+In most cases you should mainly deal with the `response` [application component](structure-application-components.md)
+which is an instance of [[yii\web\Response]], by default. However, Yii also allows you to create your own response
+objects and send them to end users as we will explain in the following.
 
 In this section, we will describe how to compose and send responses to end users. 
 

docs/guide/start-installation.md

@@ -51,7 +51,7 @@ Installing from an Archive File <a name="installing-from-archive-file"></a>
 
 Installing Yii from an archive file involves three steps:
 
-1. Download the archive file from [yiiframework.com](https://github.com/yiisoft/yii2/releases/download/2.0.0-rc/yii-basic-app-2.0.0-rc.tgz).
+1. Download the archive file from [yiiframework.com](http://www.yiiframework.com/download/).
 2. Unpack the downloaded file to a Web-accessible folder.
 3. Modify the `config/web.php` file by entering a secret key for the `cookieValidationKey` configuration item
    (this is done automatically if you are installing Yii using Composer):

docs/internals/translation-status.md

@@ -30,7 +30,7 @@ runtime-bootstrapping.md            | Yes
 runtime-routing.md                  | Yes
 runtime-requests.md                 | Yes
 runtime-responses.md                | Yes
-runtime-sessions-cookies.md         |
+runtime-sessions-cookies.md         | Yes
 runtime-url-handling.md             |
 runtime-handling-errors.md          |
 runtime-logging.md                  |