Friend requests with different nospam fix and added saving/loading of nospam.
prefer param over static

Conflicts:
	testing/toxic/main.c
add header guard and includes to windows.h
remove externs in favor of includes
move windows functions to its own file
remove temporary callbacks from refactoring
refresh windows after resize
move client data struct to header file
provide access to the close client list
add dhtstatus file
add dhtstatus window