Merge pull request #787 from uberhacker/add-aria2-package

Add aria2 package

packages/aria2.rb

+require 'package'
+
+class Aria2 < Package
+  description 'aria2 is a lightweight multi-protocol & multi-source, cross platform download utility operated in command-line. It supports HTTP/HTTPS, FTP, SFTP, BitTorrent and Metalink.'
+  homepage 'https://aria2.github.io/'
+  version '1.32.0'
+  source_url 'https://github.com/aria2/aria2/releases/download/release-1.32.0/aria2-1.32.0.tar.xz'
+  source_sha1 '91afc96d5ac8b5fb96ff221fba1fe6109b6f8b17'
+
+  depends_on 'c_ares'
+  depends_on 'libgcrypt'
+  depends_on 'libsqlite3'
+  depends_on 'libssh2'
+  depends_on 'libxml2'
+  depends_on 'zlibpkg'
+
+  def self.build
+    system './configure \
+           --without-libnettle \
+           --with-libgcrypt'
+    system 'make'
+  end
+
+  def self.install
+    system "make", "DESTDIR=#{CREW_DEST_DIR}", "install"
+  end
+end