Http server
OSGi HTTP server implementation. The HTTP server allows bundles to register
resourses as servlets, web pages, images or multimedia into a web server
running on the framework.
Usage
The HTTP bundle can be configured by both CM or System properties
As soon as the http bundle gets a valid configuration it creates and
registers an HttpService instance into the framework. 
Note: If the server fails to bind to a port, an HttpService will still
be registered, but the service property "port" will not be present!
System properties
The following system properties will be read when no CM is available
 org.osgi.service.http.port       
 org.osgi.service.http.hostname
 org.knopflerfish.http.mime.props
 org.knopflerfish.http.dnslookup
 org.knopflerfish.http.response.buffer.size.default 
 org.knopflerfish.http.connection.max
 org.knopflerfish.http.connection.timeout
 org.knopflerfish.http.session.timeout.default
See CM description below for descriptions
Using the Configuration Manager
The http bundle accepts Factory configurations on the PID
  org.knopflerfish.bundle.http.factory.HttpServer
..with the following properties:
- port (Integer)
- This integer property decides the default port for the server instance.
  The default port is 80.
- host (String)
-   This string property decides the default hostname for the server
  instance. If the server is running on a multihomed machine this
  property will be used to decide which network interface the server will
  listen to. If this property is not set the server will listen to all network
  interfaces. The default is to listen to all network interfaces.
- mime.map (Vector of String[2])
- 
  This property is a vector of arrays defining MIME type mappings. Each
  entry in the vector is an array with two elements where the first is
  the file name extension and the second is the associated MIME type.
  By default the most common file types are defined.
- session.timeout.default (Integer)
- 
  This integer property decides the default timeout in seconds for an
  HTTP session. The default is 1200 seconds.
- connection.timeout (Integer)
- 
  This integer property decides the timeout in seconds for a persistent
  connection to the HTTP server. The default is 30 seconds.
- connection.max (Integer)
- 
  This integer property decides the maximum number of concurrent
  connections to the HTTP server. The default is 50.
- dns.lookup (Boolean)
- 
  This boolean property decides if the server will use DNS lookup when a
  servlet calls the HttpServletRequest.getRemoteHost method. In some
  environments DNS lookup will cause the current transaction to hang for
  a long period of time. The default is to do DNS lookup.
- response.buffer.size.default (Integer)
- 
  This integer property decides the default buffer size in bytes for an
  HTTP response. If a servlet or publisher does not exceed this buffer,
  the server will calculate and send the content length header in the
  response. If the buffer is exceeded the servlet or publisher need to
  set the content length header explicitly. The content length header is
  required for persistent connections. If the content length is unknown
  the server will send a connection close header. The buffer size can be
  set runtime by the servlet using the HttpResponse.setBufferSize()
  method. The default is 16384 bytes.