Moved all the generic packet sending, encryption, reception,

	Moved all the generic packet sending, encryption, reception,
	decryption and processing functions to library as they were
	duplicated code. Now server uses the generic routine which is
	a lot cleaner. Channel message sending uses now also generic
	routines instead of duplicating the packet sending for every
	channel message sending function. Same was done for private
	message sending as well.