Current stack
=============


 /-------+                +-----------------------+
 | User1 |<-------------->|    Waartaa Server     |
 +-------/                |                       |
                          |                       |
 /-------+                |           +---------+ |        /--------------+
 | User2 |<-------------->|           | NodeIRC |--------->| IRC Server 1 |
 +-------/                |           | client 1| |        +--------------/
                          |           +---------+ |            ^
     .                    |           | NodeIRC | |            |  .
     .          /-------->|           | client 2|--------------/  .
     .          |         |           +---------+ |               .
                |         |               ...     |
 /-------+      |         |           +---------+ |         /--------------+
 | UserN |<-----/         |           | NodeIRC |---------->| IRC Server N |
 +-------/                |           | client M| |         +--------------/
                          |           +---------+ |
                          +-----------------------+
                                 |  |  |     |
                                 |  |  | ... |
                                 |  |  |     |
                                 v  v  v     v
                            +-------------------+
                            |    MongoDB {s}    |
                            |                   |
                            | +-------+         |
                            | | OPLOG |         |
                            | |       |         |
                            | +-------+         |
                            +-------------------+

Current stack
=============


 /-------+                +-----------------------+
 | User1 |<------------\  |    Waartaa Server     |
 +-------/             |  |                       |
                       |  |                       |
 /-------+             |  |           +---------+ |        /--------------+
 | User2 |<---------\  |  |           | NodeIRC |--------->| IRC Server 1 |
 +-------/          |  |  +-------+           | client 1| |        +--------------/
                    |  \->|       |    +---------+ |            ^
     .              \---->|  PUB  |    | NodeIRC | |            |  .
     .          /-------->|       |    | client 2|--------------/  .
     .          |         |       |    +---------+ |               .
                |         +-------+               ...     |
 /-------+      |         |           +---------+ |         /--------------+
 | UserN |<-----/         |           | NodeIRC |---------->| IRC Server N |
 +-------/                |           | client M| |         +--------------/
                          |           +---------+ |
                          +-----------------------+
                                 |  |  |     |
                                 |  |  | ... |
                                 |  |  |     |
                                 v  v  v     v
                            +-------------------+
                            |    MongoDB {s}    |
                            |                   |
                            | +-------+         |
                            | | OPLOG |         |
                            | |       |         |
                            | +-------+         |
                            +-------------------+

Improve DITAA diagram for current stack of waartaa.
Improve DITAA diagram for current stack of waartaa.
