Ensure that every file in Spack has a license (#2659)

* Ensure that every package has a license

Also fixes URLs with http://http:// doubled.

This is a continuation of #2656.

* Add license to every file in Spack

* Make sure Todd is the author of all packages

* Fix flake8 tests

* Don't license external Sphinx docs

* Don't display licenses in tutorial example packages

Also fixes typos and converts command-line examples
from tcsh to bash, which is more common

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

@@ -1,3 +1,27 @@
+##############################################################################
+# 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 *
 import shutil
 
@@ -5,11 +29,10 @@
 class Sbt(Package):
     """Scala Build Tool"""
 
-    homepage = "http://http://www.scala-sbt.org"
-    url      = "http://http://www.scala-sbt.org/download.html"
+    homepage = "http://www.scala-sbt.org"
+    url      = "https://dl.bintray.com/sbt/native-packages/sbt/0.13.12/sbt-0.13.12.tgz"
 
-    version('0.13.12', 'cec3071d46ef13334c8097cc3467ff28',
-            url='https://dl.bintray.com/sbt/native-packages/sbt/0.13.12/sbt-0.13.12.tgz')
+    version('0.13.12', 'cec3071d46ef13334c8097cc3467ff28')
 
     depends_on('jdk')