VBOX: Introduce the notion of Virtualbox COM namespaces. We currently support VirtualBox 4.2 and VirtualBox 4.3.

VBOX: Do not attempt to restore the current snapshot if the VM hasn't been running long enough to generate one.

VBOX: If something fails during create_vm(), we must release the write lock before deregister_vm() is called. Handle machine and session cleanup at the end if the routine.

VBOX: Move common code to VBOX_BASE class, VBOX_VM derives from it by extending virtual functions calling Vboxmanage or Native API functions.  Use ATL on Windows to wrap COM Objects and data types.

VBOX: Begin refactoring for supporting the native VirtualBox API set on Windows.  Use the code in the deprecated directory as a baseline.

When the file is detected, the wrapper will call boinc_temporary_exit() and restart the VM at a later date.

VBOX: Attempt to fix a possible crash seen on T4T with an incompatible version of VirtualBox running on Linux.

VBOX: Try and prevent vboxwrapper from starting the VM if BOINC has signaled boinc_status.quit_requit or boinc_status.no_heartbeat.

TODO: Refactor how command line options and vbox_job.xml options are handled.  This was a ugly hack.

VBOX: Make the guest additions available to all VMs.  This does not mean the VM will use them, but they will be available.

VBOX: Do not disable the host I/O cache for virtualized disk controllers that do not support async I/O within VirtualBox.

VBOX: Use the 'Name' field instead of the internal virtualbox name for the default network interface.

VBOX: When the bridged network option is selected, don't forget to set which network interface it is supposed to bridge with.

VBOX: Set the network configuration at VM creation time.  set_network_access() is called whenever the network is suspended or resumed.  It'll cause multiple DHCP requests to be spawned on a network resume.

VBOX: Do not use a VM's XML file to determine valid disk controller combinations, vboxmanage attempts to maintain backwards compatibility so we do not have too.

VBOX: with VirtualBox 4.3 they renamed the 'IntelAHCI' disk controller to 'AHCI'.  Automatically adjust depending on the installer version of VirtualBox.