functions and typdef for SIGCHLD handling
ignore NFS files
moved netdev device management to netdevmgm.c/h
removed flip pointers since it's pointless to send them
shortened MSGTYPe to MSGT, dide some formatting, added device name,
minor count, default major number and hashtable size
added netdevmgm.o for compliation
removed readdir since it's useless for device drivers
removed readdir since it's not necessary for drivers and moved
file_operations here
removed readdir, changed MSGTYPE to MSGT and extended netlink_send
arguments
added printing of addreses of connecting clients
added client connection to main, done some formatting
extended arguments of netlink_send
added more choices to recv and done a lot of formatting
moved netdev_class and netdev_devno here so they are globally
accessible, added four new functions of rmanagement of netdev devices
from netlink
moved fnetdev_fops to fo.c since it makes more sense, added functions
for creating, destroying and finding devices, also for initiating
hashtable of devices and deleting all devices in it
moved netdev_data to netdevmgm.h, netdev_fops to fo.c and moved specific
device creation to netdevmgm.c