update 1.0.8.0

Commits for version update

vendor/zendframework/zend-http/doc/book/intro.md

@@ -0,0 +1,35 @@
+# Introduction
+
+zend-http provides the HTTP message abstraction used by
+[zend-mvc](https://zendframework.github.io/zend-mvc/), and also provides an
+extensible, adapter-driven HTTP client library. It provides the following
+abstractions:
+
+- Context-less `Request` and `Response` classes that expose a fluent API for
+  introspecting several aspects of HTTP messages:
+  - Request line information and response status information
+  - Parameters, such as those found in POST and GET
+  - Message Body
+  - Headers
+- A client implementation with various adapters that allow for sending requests
+  and introspecting responses.
+
+> ### Not PSR-7!
+>
+> This library **does not** support [PSR-7](http://www.php-fig.org/psr/psr-7), as
+> it predates that specification. For PSR-7 support, please see our
+> [Diactoros component](https://zendframework.github.io/zend-diactoros/).
+
+## Zend\Http Request, Response and Headers
+
+The request, response and headers implementations of the zend-http component
+provides a fluent, object-oriented interface for introspecting information from
+all the various parts of an HTTP request or HTTP response. The primary classes
+are `Zend\Http\Request` and `Zend\Http\Response`. Both are “context-less”,
+meaning that they model a request or response in the same way whether it is
+presented by a client (to **send** a request and **receive** a response) or by a
+server (to **receive** a request and **send** a response). In other words,
+regardless of the context, the API remains the same for introspecting their
+various respective parts. Each attempts to fully model a request or response so
+that a developer can create these objects from a factory, or create and populate
+them manually.