Ports: Switch to new ports system (#594)

Much redundancy is removed from package scripts with this system.
It also supports simple dependency management, uninstalling (through
BSD ports style plist files), cleaning up after itself (with clean,
clean_dist, clean_all commands), etc.

Ports/vim/package.sh

@@ -0,0 +1,17 @@
+#!/bin/bash ../.port_include.sh
+port=vim
+version=git
+workdir=vim-master
+useconfigure="true"
+curlopts="-L"
+files="https://github.com/vim/vim/archive/master.tar.gz vim-git.tar.gz"
+configopts="--with-tlib=ncurses --with-features=small"
+depends="ncurses"
+
+export vim_cv_getcwd_broken=no
+export vim_cv_memmove_handles_overlap=yes
+export vim_cv_stat_ignores_slash=yes
+export vim_cv_tgetent=zero
+export vim_cv_terminfo=yes
+export vim_cv_toupper_broken=no
+export vim_cv_tty_group=world