Remove virtualbox-*-legacy due to lack of staging

The virtualbox-ose-kmod-legacy port is staged, but it has no purpose
without the unstaged virtualbox-ose-legacy port, so both ports have
been removed at the same time.
Add USE_XORG=xaw. Not clear how this was building successfully before.

While here, include stdlib.h to quiet warnings about exit.
- Convert to USES=libtool and add INSTALL_TARGET=install-strip
- Disable static module
- Replace pre-configure with USE_AUTOTOOLS
Fix build on 8 and 9. While here, use OPTIONS helpers.
Fix build on 8 and 9.
- Fix build when X11 option is off

- Move openal/freealut to USES

- Allow using ncurses from base system

PR:		ports/193483, ports/193485
Submitted by:	Andriy Voskoboinyk
- Fix MASTER_SITES
- Add USES=libtool and INSTALL_TARGET=install-strip
- Avoid including bsd.port.options.mk
Convert to USES=libtool and add INSTALL_TARGET=install-strip
Add USES=libtool and INSTALL_TARGET=install-strip
Remove unstaged devel/arm-eabi-gcc and cascade remove four others

Without devel/arm-eabi-gcc, unstaged cross-gcc has no purpose, nor
does either of the -binutils ports.  The sysutils/u-boot-beaglebone-eabi
was staged, but is a casualty of the arm-eabi-gcc removal.
- Add USES=libtool and INSTALL_TARGET=install-strip
- Remove duplicate entry from pkg-plist
Add USES=libtool and INSTALL_TARGET=install-strip
Restore devel/cross-binutils (needed for devel/mingw64-binutils)
- Add explicit build dependency on misc/shared-mime-info
- Add USES=libtool and convert to USES=python
Fix MOVED

Pointy hat:	marino