use current license practice in rakefile

Rakefile

@@ -1,43 +1,8 @@
 # *********************************************************************************
-# URBANopt™, Copyright (c) 2019-2021, Alliance for Sustainable Energy, LLC, and other
-# contributors. All rights reserved.
-
-# Redistribution and use in source and binary forms, with or without modification,
-# are permitted provided that the following conditions are met:
-
-# Redistributions of source code must retain the above copyright notice, this list
-# of conditions and the following disclaimer.
-
-# Redistributions in binary form must reproduce the above copyright notice, this
-# list of conditions and the following disclaimer in the documentation and/or other
-# materials provided with the distribution.
-
-# Neither the name of the copyright holder nor the names of its contributors may be
-# used to endorse or promote products derived from this software without specific
-# prior written permission.
-
-# Redistribution of this software, without modification, must refer to the software
-# by the same designation. Redistribution of a modified version of this software
-# (i) may not refer to the modified version by the same designation, or by any
-# confusingly similar designation, and (ii) must refer to the underlying software
-# originally provided by Alliance as “URBANopt”. Except to comply with the foregoing,
-# the term “URBANopt”, or any confusingly similar designation may not be used to
-# refer to any modified version of this software or any modified version of the
-# underlying software originally provided by Alliance without the prior written
-# consent of Alliance.
-
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
-# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
-# IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
-# INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
-# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
-# LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
-# OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
-# OF THE POSSIBILITY OF SUCH DAMAGE.
+# URBANopt (tm), Copyright (c) Alliance for Sustainable Energy, LLC.
+# See also https://github.com/urbanopt/urbanopt-scenario-gem/blob/develop/LICENSE.md
 # *********************************************************************************
-#
+
 require 'bundler/gem_tasks'
 require 'rspec/core/rake_task'