Add vifm (0.8.2) package

Vifm is an ncurses based file manager with vi like
keybindings/modes/options/commands/configuration, which also borrows
some useful ideas from mutt.

Tested as working on Samsung XE50013-K01US (x86_64).

All tests are passing.
https://gist.github.com/cstrouse/172f87a8fbfb15eabae29930e40e4504

packages/vifm.rb

+require 'package'
+
+class Vifm < Package
+  version '0.8.2'
+  source_url 'https://downloads.sourceforge.net/project/vifm/vifm/vifm-0.8.2.tar.bz2'
+  source_sha1 '1ae4179b2b9a43c440290af0ecc91b9235203be7'
+
+  depends_on "ncurses"
+
+  def self.build
+    system "./configure", \
+	   "--prefix=/usr/local", \
+	   "--without-gtk", \
+	   "--without-X11", \
+	   #"--with-curses=/usr/local/include/ncursesw" \
+	   #"--with-curses-name=ncursesw" \
+	   "CPPFLAGS=-I/usr/local/include/ncursesw"
+    system "make"
+  end
+
+  def self.install
+    system "make", "DESTDIR=#{CREW_DEST_DIR}", "install" 
+  end
+end