* src/NetworkManagerDevicePrivate.h
		- Split out the NMDevice struct to a different file so that stuff like
			NetworkManagerDHCP.c and NetworkManagerSystem.c can use it

	* dhcpcd/client.c
		- fprintf->syslog
		- (dhcpSendAndRecv): do non-blocking sends and receives, and check to see if we
			need to cancel the dhcp request during the send and recv

	* dhcpcd/client.h
		- Move the DHCP option enum to dhcpcd.h

	* src/NetworkManagerDHCP.c
		- Split out the actual IP/netmask/etc setting code
		- New Renew/Rebind functions
		- New timer setup function for renew/rebind operations

	* src/NetworkManagerDevice.c
		- For device activation, if we are using DHCP then keep the activation thread
			alive until device deactivation.  We need to renew/rebind the DHCP address
			after the T1 (renew) and T2 (rebind) times have expired.
		- Increase some timeouts after bringing wireless cards up/down


git-svn-id: http://svn-archive.gnome.org/svn/NetworkManager/trunk@320 4912f4e0-d625-0410-9fb7-b9a5a253dbdc