[bme-develop] New network code working

[Daniel G. <al7...@ma...>]

Hello.

I've been busy improving the network code. I've made quite a few 
changes in order to change the previous inefficient way of receiving 
messages. Changes involve:
- New class MsnBuffer, to cache everything received from the servers. 
From it, its possible to obtain the msn command or message that has not 
been processed, a FIFO for commands and messages. 
- Other changes in the way messages are process to incorporate the new 
class.
- Now the messages' arguments are split via a new contructor in the 
StringTokenizer class.
- To simplify access to these arguments I created another class to 
access the token list, StringList, this class saves us the constant 
casting of BString pointers, also has the [] operator to access the 
strings and a static method to delete all strings in a list.
- Added a destructor to StringTokenizer to delete its list object (just 
the object, not its contents).
- Changed getTokens() to return a copy of the list, since the new 
destructor will delete the list object.

Tim, the only class affected by the changes in StringTokenizer is 
IconLoader, and is only in the (BString*) casting, so I took the 
liberty of making the changes, I hope you don't mind.

So far works fine, but needs more intensive testing. This should be in 
the CVS by the time you read this, the code for MsnBuffer is in the 
MsnServerHandler.cpp/h files.
Let me know what you think. 

Regards,
Daniel