add python ext skeleton
update wscript for python
Merge branch 'master' into python-ext

Conflicts:
	wscript
added server python function calls
probably hit the gil problem
python rpc partially working
prototype for pyrpc
minor update
generating python rpc stub files
generating service code
registering message types
move rpcgen into pylib folder
dont make bin/rpcgen a link, write it as a true script file
minor update on test folder
reduce librlog size
added marshal.py
minor update
use Marshal for rpc arguments serialization

also:
  * reg_to can now be used as rpc service name
  * preparing for python-only rpc, register with string name
rpcgen generating sync rpc call code for python

TODO:
  * exception handling
  * async rpc call
  * mem leak
proper execption handling in python server code