add a proper license file, mit-licensed for the website code since it's from jekyll. clarify on the site footer that STEPcode itself is BSD-3.

brlcad · brlcad · commit ebaf6ca06420 · 2019-11-22T22:58:51.000-05:00
diff --git a/LICENSE b/LICENSE
@@ -0,0 +1,7 @@
+Copyright 2009-2019 The STEPcode Development Team
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/_includes/footer.html b/_includes/footer.html
@@ -1,7 +1,7 @@
 <footer role="contentinfo">
   <div class="grid">
     <div class="unit one-third center-on-mobiles">
-      <p>The contents of this website are &copy;&nbsp;{{ site.time | date: '%Y' }} <a href="http://github.com/stepcode/">STEPcode</a> under the terms of the <a href="{{ site.repository }}/blob/master/LICENSE">MIT&nbsp;License</a>.</p><p>This site borrows heavily from the <a href="http://jekyllrb.com/">Jekyll</a> website, which also under the MIT license.</p>
+      <p>&copy;&nbsp;{{ site.time | date: '%Y' }} <a href="http://github.com/stepcode/">STEPcode</a> is distributed under the permissive BSD-3 license.  See our <a href="{{ site.repository }}/blob/master/COPYING">COPYING</a> file for details.</p>
     </div>
     <div class="unit two-thirds align-right center-on-mobiles">
       <p>
