Init new chapters

caching,_sessions,_local_storage_&_cookies.md

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+# Caching, Sessions, Local Storage & Cookies
+
+## Caching
+
+For caching the `CacheManager` provides access to the caching systems in place. 
+Out of the box the CacheManager supports and automatically initializes either 
+Redis or Memcached depending on the client configuration. The caching is 
+not mandatory and therfor shouldn't be missuesed as in-memory database. It is 
+not necessary to check if Redis or Memcached are available the CacheManager 
+automatically handles the caching based on their existence.
+
+### HTTP Cache
+
+By default only stylesheets, javascript and layout images as well as module 
+images are cached. Everything else is considered volatile and not cached. 
+If a response specific response should be cached feel free to use the 
+response header:
+
+Example usage for 30 days caching:
+
+```
+$resposne->setHeader('Cache-Control', 'Cache-Control: max-age=2592000');
+```
+
+In order to trigger a re-cache of stylesheets or javascript files make sure to 
+include their version hash as file name. This way version updates will result 
+in a new file name and will be re-cached by the client browser.
+
+Example usage:
+
+```
+$head->addAsset(AssetType::JS, $request->getUri()->getBase() . 'Modules/Media/ModuleMedia_' . self::$version . '.js');
+```
+
+## Sessions
+
+Sessions are handled via the `SessionManager`. Sessions can be set and 
+manipulated from the web application as well as the socket or console 
+application. 
+
+### HTTP
+
+The Http session will be saved automatically, there is no need to access the 
+super global `$_SESSION`. Make sure to only modify session data using the 
+SessionManager
+
+### Socket & Console
+
+The session will be stored and assoziated with the logged in user in memory. 
+A disconnect or quit is considered as a logout and therefor results in the 
+destruction of the session object of this user and will be empty for the 
+next login.
+
+## Local Storage
+
+
+## Cookies

datamapper_&_query_builder.md

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+# DataMapper & Query Builder
+
+
+

modules.md

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+# Modules
+
+## Info
+
+## Install
+
+## Update
+
+## Uninstall
+
+## Routing
+
+## Model, View, Controller, Template
+
+## Resources
+
+## Providing
+
+## Requesting
+
+## Receiving