xournal: initial formula

Xournal is an application for notetaking, sketching, keeping a journal using a stylus.
It is similar to Microsoft Windows Journal or to other alternatives such as Jarnal, Gournal, and NoteLab.

In addition Xournal is a great tool for PDF editting, especially form filling.

Closes Homebrew/homebrew#25104.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>

Formula/xournal.rb

@@ -0,0 +1,20 @@
+require 'formula'
+
+class Xournal < Formula
+  homepage 'http://xournal.sourceforge.net'
+  url 'http://downloads.sourceforge.net/xournal/xournal-0.4.7.tar.gz'
+  sha1 'd2556bf21bef2df99bef0a6d1cb251d5e0f12d3f'
+
+  depends_on :autoconf
+  depends_on :automake
+  depends_on 'pkg-config' => :build
+  depends_on :x11
+  depends_on 'gtk+'
+  depends_on 'poppler' => 'with-glib'
+  depends_on 'libgnomecanvas'
+
+  def install
+    system "./autogen.sh", "--prefix=#{prefix}"
+    system "make", "install"
+  end
+end