webservd: Rename Server to DBusServer

rename server.cc/.h to dbus_server.cc/h and also raname class Server
to DBusServer to align with other dbus specific files and classes, such
as dbus_protocol and dbus_request. Also, make it clear we support two
separate IPC mechanisms, Binder and DBus, and those implementations are
the files start with binder_ and dbus_ respectively.

Change-Id: I245bdbdab442b7c6c5d8dcd4a6f6a6de75e727e9
Signed-off-by: Bin Chen <pierr.chen@gmail.com>
7 files changed