VirtualBox 5.0.6.103037

- GUI: the update check now uses the HTTP system proxy settings by default
- GUI: About dialog improvements. Copyable version text, do not close dialog on mouse-clicks and focus losing, explicit close button at the bottom of dialog and disabled close button fix on OS X.
- GUI: fixed bug when re-assigning shortcuts
- GUI: fixed default focus button in message-box dialogs
- GUI: fixed settings dialog which is opened if the network settings need to be changed at VM startup
- GUI: fixed crash during VM start if an early error message needs to be shown, for example Linux kernel modules not present
- Bridged Networking: fixed handling of guest DHCP requests without UDP checksum when bridging to a wireless interface
- Audio: latency fixes
- Guest Control: correctly set USERNAME and USERPROFILE environment variables (Windows guests only)
- Guest Control: several fixes
- API: properly restore NAT port forwarding rules when reverting to a snapshot
- Parallel ports: Several fixes allowing to enable two parallel ports for a VM
- VBoxManage: fixed wrong output of debugvm show command
- VBoxManage: fixed hang when specifying logging groups with debugvm log starting with h, for example hex
- Windows hosts: renamed VBoxStartup.log to VBoxHardening.log and provide this log file in the GUI log viewer
- Windows hosts: fixed a small memory leak in the Windows host interface driver (VBoxNetAdp) which caused a BSOD if the driver verifier is enabled
- Windows hosts: fixed a failure to start VMs on hosts where dsound.dll is not available
- Windows hosts: another fix for VERR_LDR_MISMATCH_NATIVE errors
- Windows hosts: fixed host-to-guest communication with bridged networking
- Windows hosts: fixed broken data receiving from the serial device with the named pipe backend if Kaspersky AV is installed
- Linux hosts: Linux 4.3 compile fixes
- Linux hosts: installer fix for certain systems
- Linux hosts / guests: native systemd support for the host/guest installer scripts. The scripts for re-compiling the kernel modules are now located at /sbin/rcvboxdrv (host) and /sbin/rcvboxadd
- Mac OS X hosts: GUI-related fixes for El Capitan
- Mac OS X hosts: fixed a problem with capturing USB devices under El Capitan
- Mac OS X hosts: allow colon character on shared folders
- Linux Additions: properly set the VBoxService process ID in the PID file
- Linux Additions: Guest Control fixes
- Windows Additions: fixed shutting down VBoxTray when running with older VirtualBox host versions
- Windows Additions: fixed video playback with VLC and Windows Media Player when the WDDM driver is used and 3D is not used
- Windows Additions: prevent a possible VLC crash when the WDDM driver is used and 3D is enabled by implementing YV12 surfaces