Add support for XEP-0198: Stream Management

- De-duplicate code by moving it into AbstractXMPPConnection
- Introduce TopLevelStreamElement as superclass for all XMPP stream elements.
- Add SynchronizationPoint, ParserUtils
- Add ParserUtils

Fixes SMACK-333 and SMACK-521

documentation/extensions/index.md

@@ -9,6 +9,14 @@ for many of the protocol extensions.
 This manual provides details about each of the "smackx" extensions, including
 what it is, how to use it, and some simple example code.
 
+Currently supported XEPs of smack-tcp
+-------------------------------------
+
+| Name                                        | XEP                                                      | Description |
+|---------------------------------------------|----------------------------------------------------------|----------------------------------------------------------------------------------------------------------|
+| [Stream Management](streammanagement.html)  | [XEP-0198](http://xmpp.org/extensions/xep-0198.html) | Allows active management of an XML Stream between two XMPP entities (stanza acknowledgement, stream resumption). |
+
+
 Smack Extensions and currently supported XEPs by Smack (smack-extensions)
 -------------------------------------------------------------------------
 

documentation/extensions/streammanagement.md

@@ -0,0 +1,37 @@
+Stream Management
+=================
+
+XMPPTCPConnection comes with support for Stream Management (SM).
+
+**XEP related:** [XEP-0198](http://xmpp.org/extensions/xep-0198.html)
+
+Known interoperability issues
+-----------------------------
+
+- SM resumption failes on prosody when compression in sync flush mode is used with prosody. See [Prosody issue #433](https://code.google.com/p/lxmppd/issues/detail?id=433).
+
+Enabling stream management
+------------------------
+
+TODO
+
+Getting notifications about acknowledges stanzas
+------------------------------------------------
+
+TODO
+
+Requisting stanza acknowledgements from the server
+--------------------------------------------------
+
+### By using predicates
+
+TODO
+
+### Manually
+
+TODO
+
+Enable stream resumption
+------------------------
+
+TODO