Merge pull request #8465 from riadvice/update-open-sans-font

Update SourceSansPro font files to support more languages.

bigbluebutton-html5/public/fonts/SourceSansPro/OFL.txt

@@ -1,7 +1,8 @@
-Copyright 2010, 2012 Adobe Systems Incorporated (http://www.adobe.com/), with Reserved Font Name 'Source'. All Rights Reserved. Source is a trademark of Adobe Systems Incorporated in the United States and/or other countries.
+Copyright 2010-2018 Adobe (http://www.adobe.com/), with Reserved Font Name 'Source'. All Rights Reserved. Source is a trademark of Adobe in the United States and/or other countries.
+
 This Font Software is licensed under the SIL Open Font License, Version 1.1.
-This license is copied below, and is also available with a FAQ at:
-http://scripts.sil.org/OFL
+
+This license is copied below, and is also available with a FAQ at: http://scripts.sil.org/OFL
 
 
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