Security update for rubygem-rails-html-sanitizer

This update for rubygem-rails-html-sanitizer fixes the following issues:

- CVE-2015-7579: XSS vulnerability in rails-html-sanitizer (bsc#963327)
- CVE-2015-7578: XSS vulnerability via attributes (bsc#963326)
- CVE-2015-7580: XSS via whitelist sanitizer (bsc#963328)

Fixed bugs
bnc#963328
VUL-0: CVE-2015-7580: rubygem-rails-html-sanitizer: XSS via whitelist sanitizer
bnc#963327
VUL-0: CVE-2015-7579: rubygem-rails-html-sanitizer: XSS vulnerability in rails-html-sanitizer
bnc#963326
VUL-0: CVE-2015-7578: rubygem-rails-html-sanitizer: XSS vulnerability via attributes
Selected Binaries
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