Add package for bamtools (#1571)

bamtools provides a C++ API & command-line toolkit for working with BAM
data.

var/spack/repos/builtin/packages/bamtools/package.py

+##############################################################################
+# Copyright (c) 2013-2016, Lawrence Livermore National Security, LLC.
+# Produced at the Lawrence Livermore National Laboratory.
+#
+# This file is part of Spack.
+# Created by Todd Gamblin, tgamblin@llnl.gov, All rights reserved.
+# LLNL-CODE-647188
+#
+# For details, see https://github.com/llnl/spack
+# Please also see the LICENSE file for our notice and the LGPL.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU Lesser General Public License (as
+# published by the Free Software Foundation) version 2.1, February 1999.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the IMPLIED WARRANTY OF
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the terms and
+# conditions of the GNU Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+##############################################################################
+from spack import *
+
+
+class Bamtools(Package):
+    """C++ API & command-line toolkit for working with BAM data."""
+
+    homepage = "https://github.com/pezmaster31/bamtools"
+    url      = "https://github.com/pezmaster31/bamtools/archive/v2.4.0.tar.gz"
+
+    version('2.4.0', '6139d00c1b1fe88fe15d094d8a74d8b9')
+    version('2.3.0', 'd327df4ba037d6eb8beef65d7da75ebc')
+    version('2.2.3', '6eccd3e45e4ba12a68daa3298998e76d')
+
+    depends_on('cmake', type='build')
+
+    def install(self, spec, prefix):
+        with working_dir('spack-build', create=True):
+            cmake('..', *std_cmake_args)
+
+            make()
+            make('install')