unzip 6.0 package added

packages/unzip.rb

+require 'package'
+
+class Unzip < Package
+  version '6.0'
+  source_url 'http://pkgs.fedoraproject.org/repo/pkgs/unzip/unzip60.tar.gz/62b490407489521db863b523a7f86375/unzip60.tar.gz'
+  source_sha1 'abf7de8a4018a983590ed6f5cbd990d4740f8a22'
+
+  depends_on 'buildessential'
+
+  def self.build
+    system "make -f unix/Makefile generic"
+  end
+
+  def self.install
+    system "make prefix=/usr/local MANDIR=/usr/local/tmp/unzip-man -f unix/Makefile install"
+    #remove the man pages we couldn't install
+    system "rm -r -f /usr/local/tmp/unzipman"
+  end
+end