Copyright character saved in ISO-8859-1 encoding for some files

[fdintino]

The © character is encoded as ISO-8859-1 in a few files, which prevents sprockets from working, as it expects UTF-8 encoded files. The files with the problematic copyright character are:

• third-party/uxf/src/lib/backplane/_unit-tests/ut-dom3ls.js
• third-party/uxf/src/lib/backplane/_unit-tests/ut-file.js
• third-party/uxf/src/lib/backplane/_unit-tests/ut-fileio.js
• third-party/uxf/src/lib/backplane/_unit-tests/ut-scheme-handler.js
• third-party/uxf/src/lib/backplane/io/file.js
• third-party/uxf/src/lib/functions/xforms/hmac.js
• third-party/uxf/src/lib/functions/xslt20/format-number.js