Fix Non-BMP char handling

git-svn-id: http://svn.coderepos.org/share/lang/javascript/Base64/trunk@39236 d0d07461-0603-4401-acd4-de1884942a52
.travis.yml

git-svn-id: http://svn.coderepos.org/share/lang/javascript/Base64/trunk@39237 d0d07461-0603-4401-acd4-de1884942a52
.travis.yml

git-svn-id: http://svn.coderepos.org/share/lang/javascript/Base64/trunk@39238 d0d07461-0603-4401-acd4-de1884942a52
VERSION 2.1.0

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Merge branch 'master' of github.com:dankogai/js-base64
Merge branch 'master' of github.com:dankogai/js-base64
VERSION 2.1.1