Overriding source.st excluding the data-md-source attribute. (#121)

* Overriding source.st excluding the data-md-source attribute.

* Updating LICENSE file + Adding newline to source.st

LICENSE

@@ -209,6 +209,7 @@ which was released under an MIT license <https://github.com/sbt/sbt-paradox-mate
 - theme/src/main/assets/assets/javascripts/paradox-material-theme.js
 - theme/src/main/assets/partials/footer.st
 - theme/src/main/assets/partials/nav.st
+- theme/src/main/assets/partials/source.st
 
 Copyright (c) 2016-2018 Martin Donath <[email protected]>
 Copyright (c) 2017-2018 Jonas Fonseca <[email protected]>

theme/src/main/assets/partials/source.st

@@ -0,0 +1,35 @@
+$!
+  Copyright (c) 2016-2018 Martin Donath <martin.donath@squidfunk.com>
+  Copyright (c) 2017-2018 Jonas Fonseca <jonas.fonseca@gmail.com>
+
+  Permission is hereby granted, free of charge, to any person obtaining a copy
+  of this software and associated documentation files (the "Software"), to
+  deal in the Software without restriction, including without limitation the
+  rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+  sell copies of the Software, and to permit persons to whom the Software is
+  furnished to do so, subject to the following conditions:
+
+  The above copyright notice and this permission notice shall be included in
+  all copies or substantial portions of the Software.
+
+  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+  FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE
+  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+  FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+  IN THE SOFTWARE.
+!$
+<!-- Adapted from sbt-paradox-material-theme version 0.6.0 -->
+<!-- https://github.com/sbt/sbt-paradox-material-theme/blob/2d57fe0567ea9fe7e8de14faef4fa777841d505a/theme/src/main/assets/partials/source.st -->
+<!-- It removes the data-md-source attribute so that we don't perform any 3rd party request to GH -->
+<a href="$page.properties.("material.repo")$"
+   title="Go to repository"
+   class="md-source">
+  <div class="md-source__icon">
+    <i class="fa fa-$page.properties.("material.repo.type")$"></i>
+  </div>
+  <div class="md-source__repository">
+    $page.properties.("material.repo.name"); null="'material.repo.name' not defined"$
+  </div>
+</a>