Add lzip-1.19 to extract .tar.lz files

packages/lzip.rb

+require 'package'
+
+class Lzip < Package
+  version '1.19'
+  source_url 'http://download.savannah.gnu.org/releases/lzip/lzip-1.19.tar.gz'
+  source_sha1 'c6042a786b69e3209112fa991806e2e7e0ba5f07'
+
+  def self.build
+    # default -O2 cause run-time segmentation fault on armv7l
+    system "./configure", "CXXFLAGS=-Wall -W -O1"
+    system "make"
+  end
+
+  def self.install
+    system "make", "DESTDIR=#{CREW_DEST_DIR}", "install"
+  end
+
+  def self.check
+    system "make", "check"
+  end
+end